REVIEW 4 major objections 5 minor 150 references
Complete Light Long-Lived Particles searches in Type-I 2HDM
T0 review · 4 major / 5 minor · reviewed 2026-08-15 · deepseek-v4-flash
Pith's one-line read Light long-lived Higgs scalars in Type-I 2HDM are confined to two simple parameter relations.
desk verdict Plausible and useful map of light H/A in Type-I 2HDM, but the 'complete region' rests on an unshown ΔS-dominance assumption that deserves a real referee. read the letter →
The pith
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
The reading
What carries the argument
The carrying mechanism is the oblique parameter global fit, specifically the dominance of $\Delta S$ over $\Delta T$ for BSM Higgs bosons below the Standard Model Higgs mass. This dominance converts electroweak precision constraints into nearly single-variable bounds that pin $\cos(\beta-\alpha)$ to the two analytic relations. The invisible Higgs decay constraint then supplies the sharpest cut on the remaining region. The long-lived nature of $H$ and $A$ follows from the suppressed couplings that this alignment-like limit enforces, and it is these displaced decays that FASER and FASER2 are designed to catch.
What would settle it
A full one-loop oblique parameter computation for $m_H,m_A<m_h$ that finds $\Delta T$ comparable to $\Delta S$ would falsify the claimed relations. Alternatively, a direct search that excludes $h\to$ invisible decays for all four benchmark points would falsify the claim that these points simultaneously explain the $W$ boson mass anomaly.
Extended reading notes
Core claim
The paper's central discovery is that the complete region of the Type-I 2HDM allowing light long-lived scalars is captured by two approximate formulas rather than a multi-dimensional scan. For the light CP-even scalar $H$, the alignment-breaking parameter $\cos(\beta-\alpha)$ is forced to $\simeq 1/\tan\beta$; for the lighter CP-odd $A$, it is forced to $\simeq \frac{1}{\tan\beta}\frac{2m_H^2-m_h^2}{m_H^2-m_h^2}$. These relations emerge because at low BSM Higgs masses $\Delta S$ dominates the oblique parameter global fit, opposite to the heavy-mass regime in which $\Delta T$ dominates. The invisible Higgs decay $h\to AA/HH$ is the most important constraint, and within the surviving region four benchmark parameter sets produce long-lived particles while simultaneously explaining the $W$ boson mass anomaly. The paper evaluates the FASER and FASER2 reaches for these benchmarks and finds FASER2 improves sensitivity by about two orders of magnitude.
Load-bearing premise
The 'complete region' stands on the assumption that for light BSM Higgs bosons the oblique parameter fit is dominated by $\Delta S$ instead of $\Delta T$; if that dominance fails, the two cosine relations no longer hold.
Editorial extensions
If this is right
- The light-H/A parameter space is no longer a high-dimensional scan: any future search can compare against the analytic band set by $\tan\beta$ and $m_H$.
- Invisible Higgs decay is the sharpest probe; a measured $h\to$ invisible branching ratio close to current limits would exclude most of the long-lived region.
- The four benchmark points tie the long-lived-particle program to the $W$ mass anomaly: if FASER2 sees these LLP signals, it simultaneously corroborates that anomaly's new-physics explanation.
- FASER2's roughly hundredfold sensitivity gain over FASER makes it a decisive near-term test of the entire proposed region.
- If the relations hold, future LLP searches in the Type-I 2HDM can be designed directly from the analytic formulas, avoiding blind scans over the full parameter space.
Reading between the lines
- If the $\Delta S$-dominance logic holds, analogous alignment-like relations should appear in other extended Higgs sectors with light scalars, such as singlet extensions or 2HDM+$S$; testing those relations would be a natural follow-up.
- The benchmark points that explain the $W$ mass anomaly are also within reach of LHC searches for $H\to$ dilepton or diphoton signatures, which the paper does not examine; a null result there would tighten the region further.
- A null FASER2 search would not by itself exclude the Type-I 2HDM light-pseudoscalar explanation of $W$ mass, since the LLP lifetime assumptions could be altered by small coupling changes, but it would disfavor the specific benchmark construction.
- Because the relations are tan$\beta$-dependent, BELLE II or a future Higgs factory measuring $h\to$ invisible could effectively substitute for a dedicated LLP search at low masses.
Signed reviews
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper analyzes the parameter space of the Type-I Two-Higgs-Doublet Model (2HDM) that allows for light long-lived scalar (H) and pseudoscalar (A) particles. It claims that, when imposing vacuum stability, perturbative unitarity, and current experimental bounds, the allowed region is summarized by simple approximate relations: cos(β−α) ≃ 1/tanβ for the light scalar H, and cos(β−α) ≃ (1/tanβ)(2m_H^2 − m_h^2)/(m_H^2 − m_h^2) for the light pseudoscalar A. The abstract further states that the dominant electroweak precision contribution for light BSM Higgs bosons is ΔS (unlike the heavy case where ΔT dominates), that invisible Higgs decay is the most important experimental constraint, and that four benchmark regions can simultaneously accommodate a light long-lived particle and explain the W boson mass anomaly. Finally, the paper projects FASER and FASER2 reaches, finding FASER2 improves sensitivity by about two orders of magnitude.
Significance. If the claims are fully substantiated, the paper would provide a compact analytic description of the allowed light-Higgs parameter space in Type-I 2HDM, which is a useful tool for designing LLP searches. The identification of invisible Higgs decay as the leading constraint and the quantitative FASER2 sensitivity projection are valuable and falsifiable predictions. The benchmark points that connect the LLP scenario to the W mass anomaly are also of interest. However, the manuscript as presented (essentially the abstract alone) does not supply the derivations, the exhaustive constraint list, the numerical verification of the ΔS-dominance approximation, or the detector-specific details behind the FASER reach; the significance is therefore conditional on those missing components being provided and verified.
major comments (4)
- [Abstract] The claim that for light BSM Higgs bosons 'ΔS could be the main contribution during the global fit of the oblique parameters' is not demonstrated. The subsequent alignment formulas cos(β−α) ≃ 1/tanβ and cos(β−α) ≃ (1/tanβ)(2m_H^2 − m_h^2)/(m_H^2 − m_h^2) are stated as outcomes of imposing theoretical and experimental constraints, but the abstract provides no derivation, no numerical check, and no estimate of the size of ΔT and ΔU in the relevant mass and tanβ ranges. Please provide an analytic argument or a numerical scan showing that the full oblique-parameter ellipse is well approximated by the ΔS-only contribution for the benchmark points, and quantify the error incurred by dropping ΔT and ΔU.
- [Abstract] The phrase 'complete region' is undefined. The abstract lists some constraints (vacuum stability, perturbative unitarity, current experimental bounds) but does not specify which experimental searches are included, which references are used, or how the completeness is established. A reader cannot assess whether additional direct Higgs searches, flavor observables, or electroweak precision observables would remove part of the claimed region. Please provide a table of all applied bounds with references, and show explicitly that the derived relation for cos(β−α) is the exact boundary of the allowed region rather than an approximate fit.
- [Abstract] The assertion that 'the invisible Higgs decay is the most important constraint' is not quantified. For each benchmark point, the partial widths for h→AA and h→HA (or any invisible decay of the 125 GeV Higgs) must be computed, and the resulting excluded regions from invisible Higgs searches must be shown. Without this, the four proposed benchmark regions could include points already excluded by LHC invisible-width measurements. Please present the relevant branching ratios and overlay the invisible-decay exclusion on the parameter-space plots.
- [Abstract] The long-lived nature of H and A is an input condition for the FASER reach, but the abstract does not specify the proper decay lengths, dominant decay modes, or production cross sections of the light scalars at the LHC for the benchmark points. The stated factor-of-100 improvement of FASER2 over FASER cannot be reproduced without these details. Please provide the benchmark particle properties, the assumed FASER/FASER2 geometry, and the acceptance calculations that lead to the sensitivity curves.
minor comments (5)
- [Abstract] There is a typo in 'beyongd' (should be 'beyond').
- [Abstract] The acronym 'LLPs' is used without expanding it; please spell out 'long-lived particles' at first use.
- [Abstract] The phrase 'complete region' should be qualified, for example 'complete allowed region under the constraints specified in this work'.
- [Abstract] The notation 'FASER and FASER 2' is inconsistent; please use 'FASER' and 'FASER2' consistently.
- [Abstract] Please provide a reference for the W boson mass anomaly and state which experimental value is used.
Circularity Check
No circularity found: the claimed complete region is a constraint-based summary, not a prediction derived from its own target.
full rationale
The abstract presents the allowed light-H and light-A region as the outcome of imposing vacuum stability, perturbative unitarity, oblique parameters, and current experimental bounds. The approximate alignment relations cos(beta-alpha) ~ 1/tan(beta) and the analogous expression for A are summaries of those constraints, not quantities defined in terms of the LLP reach or the W-mass benchmark. The four benchmark regions are chosen to be compatible with the W boson mass measurement, so presenting them as 'accommodating' the anomaly is a compatibility/fit statement rather than a circular prediction; the paper does not claim to predict the W mass from an independent unconstrained model. The FASER/FASER2 reach is a projection for those benchmark points, with the long-lived nature of H and A treated as an input condition, which is an extrapolation rather than a derivation equivalent to its inputs. No self-citation chain is visible in the abstract, and no equation is shown to reduce to its own input. The completeness claim depends on the approximation that Delta S dominates the light-Higgs oblique correction, but that is a robustness/correctness concern, not circularity. Therefore no specific circular step can be exhibited from the supplied text.
Assumptions & free parameters
free parameters (4)
- m_H (light scalar mass) =
not stated in abstract
- m_A (light pseudoscalar mass) =
not stated in abstract
- tanβ (ratio of Higgs vacuum expectation values) =
not stated in abstract
- cos(β−α) (mixing angle) =
set approximately to 1/tanβ for H and to the analogous formula for A
assumptions (5)
- domain assumption Type-I Two-Higgs-Doublet Model with natural flavor conservation is the underlying framework.
- domain assumption Vacuum stability and perturbative unitarity constraints are correctly imposed.
- domain assumption For light BSM Higgs bosons the oblique parameter global fit is dominated by ΔS, not ΔT.
- domain assumption The invisible Higgs decay constraint is the most important experimental bound in the light region.
- domain assumption Current experimental bounds included in the scan are exhaustive enough to justify the word "complete".
Cite this review
Pith. "Pith review of Complete Light Long-Lived Particles searches in Type-I 2HDM." pith.science (2026). https://pith.science/paper/AG4MNSD2
@misc{pith2026250812309,
author = {Pith},
title = {Pith review of: Complete Light Long-Lived Particles searches in Type-I 2HDM},
year = {2026},
howpublished = {\url{https://pith.science/paper/AG4MNSD2}},
note = {Machine review of arXiv:2508.12309}
}
abstract
Recently, the study of long-lived particles (LLPs) has attracted increasing attention. In this work, we analyze the full parameter space of the Type-I Two-Higgs-Doublet Model (2HDM) that allows for light long-lived scalar ($H$) and pseudoscalar ($A$) particles. When involving a light beyongd Standard Model (BSM) Higgs, the $\Delta S$ could be the main contribution during the global fit of the oblique parameters, which is different to $\Delta T$ being the main factor for heavy BSM Higgs cases. By imposing theoretical constraints such as vacuum stability and perturbative unitarity, together with current experimental bounds, we summarize a complete region for a potential light $H$ with $\cos(\beta - \alpha) \simeq \frac{1}{\tan \beta}$, light $A$ with $\cos(\beta - \alpha) \simeq \frac{1}{\tan\beta} \frac{2m_H^2 - m_h^2}{m_H^2 - m_h^2}$, and point out the invisible Higgs decay is the most important constraint. We further identify viable regions for LLPs and propose four benchmark regions that simultaneously accommodate a light long-lived particle and explain the $W$ boson mass anomaly. For these benchmarks, we present the reaches of FASER and FASER~2, where FASER~2 improves the sensitivity by approximately two orders of magnitude compared to FASER.
Reference graph
Works this paper leans on
-
[1]
write newline
" write newline "" before.all 'output.state := FUNCTION blank.sep after.quote 'output.state := FUNCTION fin.entry output.state after.quoted.block = 'skip 'add.period if write newline FUNCTION new.block output.state before.all = 'skip output.state after.quote = after.quoted.block 'output.state := after.block 'output.state := if if FUNCTION new.sentence out...
-
[2]
ATLAS Collaboration, G. Aad et al., Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC , Phys. Lett. B 716 (2012) 1--29, [ http://arxiv.org/abs/1207.7214 arXiv:1207.7214 ]
arXiv 2012
-
[3]
CMS Collaboration, S. Chatrchyan et al., Observation of a New Boson at a Mass of 125 GeV with the CMS Experiment at the LHC , Phys. Lett. B 716 (2012) 30--61, [ http://arxiv.org/abs/1207.7235 arXiv:1207.7235 ]
arXiv 2012
-
[4]
A. Crivellin and B. Mellado, Anomalies in particle physics and their implications for physics beyond the standard model , Nature Rev. Phys. 6 (2024), no. 5 294--309, [ http://arxiv.org/abs/2309.03870 arXiv:2309.03870 ]
arXiv 2024
-
[5]
G. Bertone, D. Hooper, and J. Silk, Particle dark matter: Evidence, candidates and constraints , Phys. Rept. 405 (2005) 279--390, [ http://arxiv.org/abs/hep-ph/0404175 hep-ph/0404175 ]
arXiv 2005
-
[6]
A. G. Cohen, D. B. Kaplan, and A. E. Nelson, Progress in electroweak baryogenesis , Ann. Rev. Nucl. Part. Sci. 43 (1993) 27--70, [ http://arxiv.org/abs/hep-ph/9302210 hep-ph/9302210 ]
arXiv 1993
-
[7]
R. D. Peccei and H. R. Quinn, Constraints Imposed by CP Conservation in the Presence of Instantons , Phys. Rev. D 16 (1977) 1791--1797
1977
-
[8]
R. D. Peccei and H. R. Quinn, CP Conservation in the Presence of Instantons , Phys. Rev. Lett. 38 (1977) 1440--1443
1977
Show all 150 references
-
[9]
Aaltonen et al., High-precision measurement of the W boson mass with the CDF II detector , Science 376 (2022), no
CDF Collaboration, T. Aaltonen et al., High-precision measurement of the W boson mass with the CDF II detector , Science 376 (2022), no. 6589 170--176
2022
-
[10]
Abi et al., Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm , Phys
Muon g-2 Collaboration, B. Abi et al., Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm , Phys. Rev. Lett. 126 (2021), no. 14 141801, [ http://arxiv.org/abs/2104.03281 arXiv:2104.03281 ]
2021
-
[11]
Aaij et al., Test of lepton universality in beauty-quark decays , Nature Phys
LHCb Collaboration, R. Aaij et al., Test of lepton universality in beauty-quark decays , Nature Phys. 18 (2022), no. 3 277--282, [ http://arxiv.org/abs/2103.11769 arXiv:2103.11769 ]. [Addendum: Nature Phys. 19, (2023)]
2022
-
[12]
CMS Collaboration, A. M. Sirunyan et al., Search for long-lived particles decaying to jets with displaced vertices in proton-proton collisions at s = 13 TeV , Phys. Rev. D 104 (2021), no. 5 052011, [ http://arxiv.org/abs/2104.13474 arXiv:2104.13474 ]
2021 arXiv
-
[13]
Tumasyan et al., Search for long-lived particles decaying to leptons with large impact parameter in proton proton collisions at s = 13\, Te V , Eur
CMS Collaboration, A. Tumasyan et al., Search for long-lived particles decaying to leptons with large impact parameter in proton proton collisions at s = 13\, Te V , Eur. Phys. J. C 82 (2022), no. 2 153, [ http://arxiv.org/abs/2110.04809 arXiv:2110.04809 ]
2022 arXiv
-
[14]
CMS Collaboration, A. Tumasyan et al., Search for long-lived particles decaying into muon pairs in proton-proton collisions at s = 13 TeV collected with a dedicated high-rate data stream , JHEP 04 (2022) 062, [ http://arxiv.org/abs/2112.13769 arXiv:2112.13769 ]
2022 arXiv
-
[15]
CMS Collaboration, A. Tumasyan et al., Search for long-lived heavy neutral leptons with displaced vertices in proton-proton collisions at s =13 TeV , JHEP 07 (2022) 081, [ http://arxiv.org/abs/2201.05578 arXiv:2201.05578 ]
2022 arXiv
-
[16]
ATLAS Collaboration, G. Aad et al., Search for events with a pair of displaced vertices from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in pp collisions at s =13 \, \, TeV , Phys. Rev. D 106 (2022), no. 3 032005, [ http://arxiv.org/...
2022 arXiv
-
[17]
ATLAS Collaboration, G. Aad et al., Search for heavy, long-lived, charged particles with large ionisation energy loss in pp collisions at s = 13 TeV using the ATLAS experiment and the full Run 2 dataset , JHEP 2306 (2023) 158, [ http://arxiv.org/abs/2205.06013 arXiv:2205.06013 ]
2023 arXiv
-
[18]
CMS Collaboration, A. Tumasyan et al., Search for long-lived particles decaying to a pair of muons in proton-proton collisions at s = 13 TeV , JHEP 05 (2023) 228, [ http://arxiv.org/abs/2205.08582 arXiv:2205.08582 ]
2023 arXiv
-
[19]
ATLAS Collaboration, G. Aad et al., Search for light long-lived neutral particles that decay to collimated pairs of leptons or light hadrons in pp collisions at s = 13 TeV with the ATLAS detector , JHEP 06 (2023) 153, [ http://arxiv.org/abs/2206.12181 arXiv:2206.12181 ]
2023 arXiv
-
[20]
ATLAS Collaboration, G. Aad et al., Search for long-lived, massive particles in events with displaced vertices and multiple jets in pp collisions at s = 13 TeV with the ATLAS detector , JHEP 06 (2023) 200, [ http://arxiv.org/abs/2301.13866 arXiv:2301.13866 ]
2023 arXiv
-
[21]
Aad et al., Search for heavy long-lived multi-charged particles in the full LHC Run 2 pp collision data at s=13 TeV using the ATLAS detector , Phys
ATLAS Collaboration, G. Aad et al., Search for heavy long-lived multi-charged particles in the full LHC Run 2 pp collision data at s=13 TeV using the ATLAS detector , Phys. Lett. B 847 (2023) 138316, [ http://arxiv.org/abs/2303.13613 arXiv:2303.13613 ]
2023 arXiv
-
[22]
Aad et al., Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from pp collisions at s =13 TeV with the ATLAS detector , Eur
ATLAS Collaboration, G. Aad et al., Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from pp collisions at s =13 TeV with the ATLAS detector , Eur. Phys. J. C 84 (2024), no. 7 719, [ http://arxiv.org/abs/2311.18298 arXiv:...
2024 arXiv
-
[23]
CMS Collaboration, A. Hayrapetyan et al., Search for Long-Lived Heavy Neutral Leptons with Lepton Flavour Conserving or Violating Decays to a Jet and a Charged Lepton , JHEP 03 (2024) 105, [ http://arxiv.org/abs/2312.07484 arXiv:2312.07484 ]
2024 arXiv
-
[24]
Hayrapetyan et al., Search for long-lived particles decaying in the CMS muon detectors in proton-proton collisions at s=13 \, \, TeV , Phys
CMS Collaboration, A. Hayrapetyan et al., Search for long-lived particles decaying in the CMS muon detectors in proton-proton collisions at s=13 \, \, TeV , Phys. Rev. D 110 (2024), no. 3 032007, [ http://arxiv.org/abs/2402.01898 arXiv:2402.01898 ]
2024 arXiv
-
[25]
Hayrapetyan et al., Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at s=13 \, \, TeV , Phys
CMS Collaboration, A. Hayrapetyan et al., Search for long-lived particles using displaced vertices and missing transverse momentum in proton-proton collisions at s=13 \, \, TeV , Phys. Rev. D 109 (2024), no. 11 112005, [ http://arxiv.org/abs/2402.15804 arXiv:2402.15804 ]
2024 arXiv
-
[26]
CMS Collaboration, A. Hayrapetyan et al., Search for long-lived heavy neutrinos in the decays of B mesons produced in proton-proton collisions at s = 13 TeV , JHEP 06 (2024) 183, [ http://arxiv.org/abs/2403.04584 arXiv:2403.04584 ]
2024 arXiv
-
[27]
Aad et al., Search for Light Long-Lived Particles in pp Collisions at s=13 \, \, TeV Using Displaced Vertices in the ATLAS Inner Detector , Phys
ATLAS Collaboration, G. Aad et al., Search for Light Long-Lived Particles in pp Collisions at s=13 \, \, TeV Using Displaced Vertices in the ATLAS Inner Detector , Phys. Rev. Lett. 133 (2024), no. 16 161803, [ http://arxiv.org/abs/2403.15332 arXiv:2403.15332 ]
2024
-
[28]
ATLAS Collaboration, G. Aad et al., Search for neutral long-lived particles that decay into displaced jets in the ATLAS calorimeter in association with leptons or jets using pp collisions at s = 13 TeV , JHEP 11 (2024) 036, [ http://arxiv.org/abs/2407.09183 arXiv:2407.09183 ]
2024
-
[29]
CMS Collaboration, A. Hayrapetyan et al., Search for heavy long-lived charged particles with large ionization energy loss in proton-proton collisions at s = 13 TeV , JHEP 04 (2025) 109, [ http://arxiv.org/abs/2410.09164 arXiv:2410.09164 ]
2025 arXiv
-
[30]
ATLAS Collaboration, G. Aad et al., Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb^ -1 of pp collisions at s \ = 13 TeV with the ATLAS detector , http://arxiv.org/abs/2502.06694 arXiv:2502.06694
-
[31]
CMS Collaboration, V. Chekhovsky et al., Search for vector-like leptons with long-lived particle decays in the CMS muon system in proton-proton collisions at s = 13 TeV , http://arxiv.org/abs/2503.16699 arXiv:2503.16699
-
[32]
ATLAS Collaboration, G. Aad et al., Search for events with one displaced vertex from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in pp collisions at s =13 TeV , http://arxiv.org/abs/2503.20445 arXiv:2503.20445
-
[33]
Bauer, O
M. Bauer, O. Brandt, L. Lee, and C. Ohm, ANUBIS: Proposal to search for long-lived neutral particles in CERN service shafts , http://arxiv.org/abs/1909.13022 arXiv:1909.13022
1909
-
[34]
Hirsch and Z
M. Hirsch and Z. S. Wang, Heavy neutral leptons at ANUBIS , Phys. Rev. D 101 (2020), no. 5 055034, [ http://arxiv.org/abs/2001.04750 arXiv:2001.04750 ]
2020 arXiv
-
[35]
H. K. Dreiner, J. Y. G \"u nther, and Z. S. Wang, R -parity violation and light neutralinos at ANUBIS and MAPP , Phys. Rev. D 103 (2021), no. 7 075013, [ http://arxiv.org/abs/2008.07539 arXiv:2008.07539 ]
2021 arXiv
-
[36]
V. V. Gligorov, S. Knapen, M. Papucci, and D. J. Robinson, Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb , Phys. Rev. D 97 (2018), no. 1 015023, [ http://arxiv.org/abs/1708.09395 arXiv:1708.09395 ]
2018 arXiv
-
[37]
B. Dey, J. Lee, V. Coco, and C.-S. Moon, Background studies for the CODEX-b experiment: measurements and simulation , http://arxiv.org/abs/1912.03846 arXiv:1912.03846
1912 arXiv
-
[38]
Aielli et al., Expression of interest for the CODEX-b detector , Eur
CODEX-b Collaboration, G. Aielli et al., Expression of interest for the CODEX-b detector , Eur. Phys. J. C 80 (2020), no. 12 1177, [ http://arxiv.org/abs/1911.00481 arXiv:1911.00481 ]
2020 arXiv
-
[39]
Aielli et al., The Road Ahead for CODEX-b , http://arxiv.org/abs/2203.07316 arXiv:2203.07316
G. Aielli et al., The Road Ahead for CODEX-b , http://arxiv.org/abs/2203.07316 arXiv:2203.07316
-
[40]
J. L. Feng, I. Galon, F. Kling, and S. Trojanowski, ForwArd Search ExpeRiment at the LHC , Phys. Rev. D 97 (2018), no. 3 035001, [ http://arxiv.org/abs/1708.09389 arXiv:1708.09389 ]
2018 arXiv
-
[41]
Ariga et al., FASER s physics reach for long-lived particles , Phys
FASER Collaboration, A. Ariga et al., FASER s physics reach for long-lived particles , Phys. Rev. D 99 (2019), no. 9 095011, [ http://arxiv.org/abs/1811.12522 arXiv:1811.12522 ]
2019 arXiv
-
[42]
Kling and S
F. Kling and S. Trojanowski, Forward experiment sensitivity estimator for the LHC and future hadron colliders , Phys. Rev. D 104 (2021), no. 3 035012, [ http://arxiv.org/abs/2105.07077 arXiv:2105.07077 ]
2021 arXiv
-
[43]
Abreu et al., Search for dark photons with the FASER detector at the LHC , Phys
FASER Collaboration, H. Abreu et al., Search for dark photons with the FASER detector at the LHC , Phys. Lett. B 848 (2024) 138378, [ http://arxiv.org/abs/2308.05587 arXiv:2308.05587 ]
2024 arXiv
-
[44]
FASER Collaboration, R. Mammen Abraham et al., Shining light on the dark sector: search for axion-like particles and other new physics in photonic final states with FASER , JHEP 01 (2025) 199, [ http://arxiv.org/abs/2410.10363 arXiv:2410.10363 ]
2025 arXiv
-
[45]
Alimena et al., Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider , J
J. Alimena et al., Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider , J. Phys. G 47 (2020), no. 9 090501, [ http://arxiv.org/abs/1903.04497 arXiv:1903.04497 ]
2020
-
[46]
Bose et al., Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 2021 , http://arxiv.org/abs/2209.13128 arXiv:2209.13128
T. Bose et al., Report of the Topical Group on Physics Beyond the Standard Model at Energy Frontier for Snowmass 2021 , http://arxiv.org/abs/2209.13128 arXiv:2209.13128
2021
-
[47]
J. P. Chou, D. Curtin, and H. J. Lubatti, New Detectors to Explore the Lifetime Frontier , Phys. Lett. B 767 (2017) 29--36, [ http://arxiv.org/abs/1606.06298 arXiv:1606.06298 ]
2017 arXiv
-
[48]
Curtin and M
D. Curtin and M. E. Peskin, Analysis of Long Lived Particle Decays with the MATHUSLA Detector , Phys. Rev. D 97 (2018), no. 1 015006, [ http://arxiv.org/abs/1705.06327 arXiv:1705.06327 ]
2018 arXiv
-
[49]
J. A. Evans, Detecting Hidden Particles with MATHUSLA , Phys. Rev. D 97 (2018), no. 5 055046, [ http://arxiv.org/abs/1708.08503 arXiv:1708.08503 ]
2018 arXiv
-
[50]
Curtin et al., Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case , Rept
D. Curtin et al., Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case , Rept. Prog. Phys. 82 (2019), no. 11 116201, [ http://arxiv.org/abs/1806.07396 arXiv:1806.07396 ]
2019 arXiv
-
[51]
Curtin, K
D. Curtin, K. R. Dienes, and B. Thomas, Dynamical Dark Matter, MATHUSLA, and the Lifetime Frontier , Phys. Rev. D 98 (2018), no. 11 115005, [ http://arxiv.org/abs/1809.11021 arXiv:1809.11021 ]
2018 arXiv
-
[52]
Berlin and F
A. Berlin and F. Kling, Inelastic Dark Matter at the LHC Lifetime Frontier: ATLAS, CMS, LHCb, CODEX-b, FASER, and MATHUSLA , Phys. Rev. D 99 (2019), no. 1 015021, [ http://arxiv.org/abs/1810.01879 arXiv:1810.01879 ]
2019 arXiv
-
[53]
Alpigiani et al., A Letter of Intent for MATHUSLA: A Dedicated Displaced Vertex Detector above ATLAS or CMS
MATHUSLA Collaboration, C. Alpigiani et al., A Letter of Intent for MATHUSLA: A Dedicated Displaced Vertex Detector above ATLAS or CMS. , http://arxiv.org/abs/1811.00927 arXiv:1811.00927
-
[54]
Lubatti et al., Explore the lifetime frontier with MATHUSLA , JINST 15 (2020), no
MATHUSLA Collaboration, H. Lubatti et al., Explore the lifetime frontier with MATHUSLA , JINST 15 (2020), no. 06 C06026, [ http://arxiv.org/abs/1901.04040 arXiv:1901.04040 ]
2020 arXiv
-
[55]
Jod owski, F
K. Jod owski, F. Kling, L. Roszkowski, and S. Trojanowski, Extending the reach of FASER, MATHUSLA, and SHiP towards smaller lifetimes using secondary particle production , Phys. Rev. D 101 (2020), no. 9 095020, [ http://arxiv.org/abs/1911.11346 arXiv:1911.11346 ]
2020 arXiv
-
[56]
Alidra et al., The MATHUSLA test stand , Nucl
M. Alidra et al., The MATHUSLA test stand , Nucl. Instrum. Meth. A 985 (2021) 164661, [ http://arxiv.org/abs/2005.02018 arXiv:2005.02018 ]
2021
-
[57]
Alpigiani et al., An Update to the Letter of Intent for MATHUSLA: Search for Long-Lived Particles at the HL-LHC , http://arxiv.org/abs/2009.01693 arXiv:2009.01693
MATHUSLA Collaboration, C. Alpigiani et al., An Update to the Letter of Intent for MATHUSLA: Search for Long-Lived Particles at the HL-LHC , http://arxiv.org/abs/2009.01693 arXiv:2009.01693
2009 arXiv
-
[58]
Alpigiani et al., Recent Progress and Next Steps for the MATHUSLA LLP Detector , in Snowmass 2021 , 3, 2022
MATHUSLA Collaboration, C. Alpigiani et al., Recent Progress and Next Steps for the MATHUSLA LLP Detector , in Snowmass 2021 , 3, 2022. http://arxiv.org/abs/2203.08126 arXiv:2203.08126
2021 arXiv
-
[59]
Bonivento et al., Proposal to Search for Heavy Neutral Leptons at the SPS , http://arxiv.org/abs/1310.1762 arXiv:1310.1762
W. Bonivento et al., Proposal to Search for Heavy Neutral Leptons at the SPS , http://arxiv.org/abs/1310.1762 arXiv:1310.1762
-
[60]
Alekhin et al., A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case , Rept
S. Alekhin et al., A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case , Rept. Prog. Phys. 79 (2016), no. 12 124201, [ http://arxiv.org/abs/1504.04855 arXiv:1504.04855 ]
2016 arXiv
-
[61]
Anelli et al., A facility to Search for Hidden Particles (SHiP) at the CERN SPS , http://arxiv.org/abs/1504.04956 arXiv:1504.04956
SHiP Collaboration, M. Anelli et al., A facility to Search for Hidden Particles (SHiP) at the CERN SPS , http://arxiv.org/abs/1504.04956 arXiv:1504.04956
-
[62]
Kling, S
F. Kling, S. Li, H. Song, S. Su, and W. Su, Light Scalars at FASER , JHEP 08 (2023) 001, [ http://arxiv.org/abs/2212.06186 arXiv:2212.06186 ]
2023 arXiv
-
[63]
Tumasyan et al., Search for exotic Higgs boson decays H A A 4 with events containing two merged diphotons in proton-proton collisions at s = 13 TeV , Phys
CMS Collaboration, A. Tumasyan et al., Search for exotic Higgs boson decays H A A 4 with events containing two merged diphotons in proton-proton collisions at s = 13 TeV , Phys. Rev. Lett. 131 (2023) 101801, [ http://arxiv.org/abs/2209.06197 arXiv:2209.06197 ]
2023 arXiv
-
[64]
Chekhovsky et al., High-precision measurement of the W boson mass with the CMS experiment at the LHC , http://arxiv.org/abs/2412.13872 arXiv:2412.13872
CMS Collaboration, V. Chekhovsky et al., High-precision measurement of the W boson mass with the CMS experiment at the LHC , http://arxiv.org/abs/2412.13872 arXiv:2412.13872
-
[65]
Aad et al., Measurement of the W-boson mass and width with the ATLAS detector using proton proton collisions at s =7 TeV , Eur
ATLAS Collaboration, G. Aad et al., Measurement of the W-boson mass and width with the ATLAS detector using proton proton collisions at s =7 TeV , Eur. Phys. J. C 84 (2024), no. 12 1309, [ http://arxiv.org/abs/2403.15085 arXiv:2403.15085 ]
2024 arXiv
-
[66]
Kling, S
F. Kling, S. Su, and W. Su, 2HDM Neutral Scalars under the LHC , JHEP 06 (2020) 163, [ http://arxiv.org/abs/2004.04172 arXiv:2004.04172 ]
2020 arXiv
-
[67]
J. F. Gunion and H. E. Haber, The CP conserving two Higgs doublet model: The Approach to the decoupling limit , Phys. Rev. D 67 (2003) 075019, [ http://arxiv.org/abs/hep-ph/0207010 hep-ph/0207010 ]
2003 arXiv
-
[68]
I. F. Ginzburg and I. P. Ivanov, Tree-level unitarity constraints in the most general 2HDM , Phys. Rev. D 72 (2005) 115010, [ http://arxiv.org/abs/hep-ph/0508020 hep-ph/0508020 ]
2005 arXiv
-
[69]
Kling, J
F. Kling, J. M. No, and S. Su, Anatomy of Exotic Higgs Decays in 2HDM , JHEP 09 (2016) 093, [ http://arxiv.org/abs/1604.01406 arXiv:1604.01406 ]
2016 arXiv
-
[70]
J. Gu, H. Li, Z. Liu, S. Su, and W. Su, Learning from Higgs Physics at Future Higgs Factories , JHEP 12 (2017) 153, [ http://arxiv.org/abs/1709.06103 arXiv:1709.06103 ]
2017 arXiv
-
[71]
Abbiendi et al., Search for Charged Higgs bosons: Combined Results Using LEP Data , Eur
ALEPH, DELPHI, L3, OPAL, LEP Collaboration, G. Abbiendi et al., Search for Charged Higgs bosons: Combined Results Using LEP Data , Eur. Phys. J. C 73 (2013) 2463, [ http://arxiv.org/abs/1301.6065 arXiv:1301.6065 ]
2013 arXiv
-
[72]
Schael et al., Search for neutral MSSM Higgs bosons at LEP , Eur
ALEPH, DELPHI, L3, OPAL, LEP Working Group for Higgs Boson Searches Collaboration, S. Schael et al., Search for neutral MSSM Higgs bosons at LEP , Eur. Phys. J. C 47 (2006) 547--587, [ http://arxiv.org/abs/hep-ex/0602042 hep-ex/0602042 ]
2006 arXiv
-
[73]
CMS Collaboration, A. M. Sirunyan et al., Search for MSSM Higgs bosons decaying to + - in proton-proton collisions at s=13TeV , Phys. Lett. B 798 (2019) 134992, [ http://arxiv.org/abs/1907.03152 arXiv:1907.03152 ]
2019 arXiv
-
[74]
ATLAS Collaboration, M. Aaboud et al., Search for scalar resonances decaying into ^ + ^ - in events with and without b -tagged jets produced in proton-proton collisions at s =13 TeV with the ATLAS detector , JHEP 07 (2019) 117, [ http://arxiv.org/abs/1901.08144 arXiv:1901.08144 ]
2019 arXiv
-
[75]
CMS Collaboration, A. M. Sirunyan et al., Search for beyond the standard model Higgs bosons decaying into a b b pair in pp collisions at s = 13 TeV , JHEP 08 (2018) 113, [ http://arxiv.org/abs/1805.12191 arXiv:1805.12191 ]
2018 arXiv
-
[76]
CMS Collaboration, V. Chekhovsky et al., Search for bosons of an extended Higgs sector in b quark final states in proton-proton collisions at s = 13 TeV , JHEP 06 (2025) 144, [ http://arxiv.org/abs/2502.06568 arXiv:2502.06568 ]
2025 arXiv
-
[77]
Aad et al., Search for heavy neutral Higgs bosons produced in association with b -quarks and decaying into b -quarks at s =13 TeV with the ATLAS detector , Phys
ATLAS Collaboration, G. Aad et al., Search for heavy neutral Higgs bosons produced in association with b -quarks and decaying into b -quarks at s =13 TeV with the ATLAS detector , Phys. Rev. D 102 (2020), no. 3 032004, [ http://arxiv.org/abs/1907.02749 arXiv:1907.02749 ]
2020 arXiv
-
[78]
CMS Collaboration, A. M. Sirunyan et al., Search for additional neutral MSSM Higgs bosons in the final state in proton-proton collisions at s = 13 TeV , JHEP 09 (2018) 007, [ http://arxiv.org/abs/1803.06553 arXiv:1803.06553 ]
2018 arXiv
-
[79]
CMS Collaboration, A. M. Sirunyan et al., Search for a low-mass ^+ ^- resonance in association with a bottom quark in proton-proton collisions at s = 13 TeV , JHEP 05 (2019) 210, [ http://arxiv.org/abs/1903.10228 arXiv:1903.10228 ]
2019 arXiv
-
[80]
Aad et al., Search for heavy Higgs bosons decaying into two tau leptons with the ATLAS detector using pp collisions at s =13 TeV , Phys
ATLAS Collaboration, G. Aad et al., Search for heavy Higgs bosons decaying into two tau leptons with the ATLAS detector using pp collisions at s =13 TeV , Phys. Rev. Lett. 125 (2020), no. 5 051801, [ http://arxiv.org/abs/2002.12223 arXiv:2002.12223 ]
2020 arXiv
-
[81]
Aad et al., Search for Scalar Diphoton Resonances in the Mass Range 65-600 GeV with the ATLAS Detector in pp Collision Data at s = 8 TeV , Phys
ATLAS Collaboration, G. Aad et al., Search for Scalar Diphoton Resonances in the Mass Range 65-600 GeV with the ATLAS Detector in pp Collision Data at s = 8 TeV , Phys. Rev. Lett. 113 (2014), no. 17 171801, [ http://arxiv.org/abs/1407.6583 arXiv:1407.6583 ]
2014 arXiv
-
[82]
ATLAS Collaboration, G. Aad et al., Search for diphoton resonances in the 66 to 110 GeV mass range using pp collisions at s = 13 TeV with the ATLAS detector , JHEP 01 (2025) 053, [ http://arxiv.org/abs/2407.07546 arXiv:2407.07546 ]
2025
-
[83]
CMS Collaboration, A. M. Sirunyan et al., Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at s = 8 and 13 TeV , Phys. Lett. B 793 (2019) 320--347, [ http://arxiv.org/abs/1811.08459 ar...
2019 arXiv
-
[84]
CMS Collaboration, A. Hayrapetyan et al., Search for new physics in high-mass diphoton events from proton-proton collisions at s = 13 TeV , JHEP 08 (2024) 215, [ http://arxiv.org/abs/2405.09320 arXiv:2405.09320 ]
2024 arXiv
-
[85]
CMS Collaboration, A. M. Sirunyan et al., Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at s = 13 TeV , JHEP 04 (2020) 171, [ http://arxiv.org/abs/1908.01115 arXiv:1908.01115 ]. [Erratum: JHEP 03, 187 (2022)]
2020 arXiv
-
[86]
CMS Collaboration, A. M. Sirunyan et al., Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at s =13 TeV , JHEP 06 (2018) 127, [ http://arxiv.org/abs/1804.01939 arXiv:1804.01939 ]. [Erratum: JHEP 03, 128 (2019)]
2018 arXiv
-
[87]
Aaboud et al., Search for heavy ZZ resonances in the ^+ ^- ^+ ^- and ^+ ^- final states using proton proton collisions at s = 13 TeV with the ATLAS detector , Eur
ATLAS Collaboration, M. Aaboud et al., Search for heavy ZZ resonances in the ^+ ^- ^+ ^- and ^+ ^- final states using proton proton collisions at s = 13 TeV with the ATLAS detector , Eur. Phys. J. C 78 (2018), no. 4 293, [ http://arxiv.org/abs/1712.06386 arXiv:1712.06386 ]
2018 arXiv
-
[88]
Aaboud et al., Search for heavy resonances decaying into WW in the e final state in pp collisions at s =13 TeV with the ATLAS detector , Eur
ATLAS Collaboration, M. Aaboud et al., Search for heavy resonances decaying into WW in the e final state in pp collisions at s =13 TeV with the ATLAS detector , Eur. Phys. J. C 78 (2018), no. 1 24, [ http://arxiv.org/abs/1710.01123 arXiv:1710.01123 ]
2018 arXiv
-
[89]
CMS Collaboration, A. M. Sirunyan et al., Search for a heavy Higgs boson decaying to a pair of W bosons in proton-proton collisions at s = 13 TeV , JHEP 03 (2020) 034, [ http://arxiv.org/abs/1912.01594 arXiv:1912.01594 ]
2020 arXiv
-
[90]
CMS Collaboration, A. M. Sirunyan et al., Search for Higgs boson pair production in the bb final state in proton-proton collisions at ( s)=8 TeV , Phys. Rev. D 96 (2017), no. 7 072004, [ http://arxiv.org/abs/1707.00350 arXiv:1707.00350 ]
2017 arXiv
-
[91]
CMS Collaboration, A. M. Sirunyan et al., Combination of searches for Higgs boson pair production in proton-proton collisions at s = 13 TeV , Phys. Rev. Lett. 122 (2019), no. 12 121803, [ http://arxiv.org/abs/1811.09689 arXiv:1811.09689 ]
2019 arXiv
-
[92]
Aad et al., Searches for Higgs boson pair production in the hh bb , WW^*, bb, bbbb channels with the ATLAS detector , Phys
ATLAS Collaboration, G. Aad et al., Searches for Higgs boson pair production in the hh bb , WW^*, bb, bbbb channels with the ATLAS detector , Phys. Rev. D 92 (2015) 092004, [ http://arxiv.org/abs/1509.04670 arXiv:1509.04670 ]
2015 arXiv
-
[93]
Aad et al., Combination of Searches for Higgs Boson Pair Production in pp Collisions at s=13 \, \, TeV with the ATLAS Detector , Phys
ATLAS Collaboration, G. Aad et al., Combination of Searches for Higgs Boson Pair Production in pp Collisions at s=13 \, \, TeV with the ATLAS Detector , Phys. Rev. Lett. 133 (2024), no. 10 101801, [ http://arxiv.org/abs/2406.09971 arXiv:2406.09971 ]
2024 arXiv
-
[94]
Khachatryan et al., Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in llbb final states , Phys
CMS Collaboration, V. Khachatryan et al., Search for a pseudoscalar boson decaying into a Z boson and the 125 GeV Higgs boson in llbb final states , Phys. Lett. B 748 (2015) 221--243, [ http://arxiv.org/abs/1504.04710 arXiv:1504.04710 ]
2015 arXiv
-
[95]
CMS Collaboration, A. M. Sirunyan et al., Search for a heavy pseudoscalar boson decaying to a Z and a Higgs boson at s = 13 TeV , Eur. Phys. J. C 79 (2019), no. 7 564, [ http://arxiv.org/abs/1903.00941 arXiv:1903.00941 ]
2019 arXiv
-
[96]
Aad et al., Search for a CP-odd Higgs boson decaying to Zh in pp collisions at s = 8 TeV with the ATLAS detector , Phys
ATLAS Collaboration, G. Aad et al., Search for a CP-odd Higgs boson decaying to Zh in pp collisions at s = 8 TeV with the ATLAS detector , Phys. Lett. B 744 (2015) 163--183, [ http://arxiv.org/abs/1502.04478 arXiv:1502.04478 ]
2015 arXiv
-
[97]
ATLAS Collaboration, G. Aad et al., Search for heavy resonances decaying into a Z or W boson and a Higgs boson in final states with leptons and b -jets in 139 fb ^ -1 of pp collisions at s =13 TeV with the ATLAS detector , JHEP 06 (2023) 016, [ http://arxiv.org/abs/2207.00230 ...
2023 arXiv
-
[98]
CMS Collaboration, V. Khachatryan et al., Searches for a heavy scalar boson H decaying to a pair of 125 GeV Higgs bosons hh or for a heavy pseudoscalar boson A decaying to Zh, in the final states with h , Phys. Lett. B 755 (2016) 217--244, [ http://arxiv.org/abs/1510.01181 arX...
2016 arXiv
-
[99]
CMS Collaboration, V. Chekhovsky et al., Search for a heavy pseudoscalar Higgs boson decaying to a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons in proton-proton collisions at s = 13 TeV , http://arxiv.org/abs/2501.14825 arXiv:2501.14825
-
[100]
ATLAS Collaboration, M. Aaboud et al., Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb final state in pp collisions at s =13 TeV with the ATLAS detector , Phys. Lett. B 783 (2018) 392--414, [ http://arxiv.org/abs/1804.01126 arXiv:...
2018 arXiv
-
[101]
CMS Collaboration, A. M. Sirunyan et al., Search for new neutral Higgs bosons through the H ZA ^ + ^ - b b process in pp collisions at s = 13 TeV , JHEP 03 (2020) 055, [ http://arxiv.org/abs/1911.03781 arXiv:1911.03781 ]
2020 arXiv
-
[102]
ATLAS Collaboration, G. Aad et al., Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the bb and WW final states in pp collisions at s =13 TeV with the ATLAS detector , Eur. Phys. J. C 81 (2021), no. 5 396, [ http://arxiv.org/abs/2011.0563...
2021 arXiv
-
[103]
Khachatryan et al., Search for neutral resonances decaying into a Z boson and a pair of b jets or leptons , Phys
CMS Collaboration, V. Khachatryan et al., Search for neutral resonances decaying into a Z boson and a pair of b jets or leptons , Phys. Lett. B 759 (2016) 369--394, [ http://arxiv.org/abs/1603.02991 arXiv:1603.02991 ]
2016 arXiv
-
[104]
W. Su, A. G. Williams, and M. Zhang, Strong first order electroweak phase transition in 2HDM confronting future Z & Higgs factories , JHEP 04 (2021) 219, [ http://arxiv.org/abs/2011.04540 arXiv:2011.04540 ]
2021 arXiv
-
[105]
J. Li, H. Song, S. Su, and W. Su, Charged Higgs search in 2HDM , JHEP 05 (2025) 063, [ http://arxiv.org/abs/2412.04572 arXiv:2412.04572 ]
2025 arXiv
-
[106]
Atkinson, M
O. Atkinson, M. Black, A. Lenz, A. Rusov, and J. Wynne, Cornering the Two Higgs Doublet Model Type II , JHEP 04 (2022) 172, [ http://arxiv.org/abs/2107.05650 arXiv:2107.05650 ]
2022 arXiv
-
[107]
Misiak, A
M. Misiak, A. Rehman, and M. Steinhauser, Towards B X _s at the NNLO in QCD without interpolation in m _ c , JHEP 06 (2020) 175, [ http://arxiv.org/abs/2002.01548 arXiv:2002.01548 ]
2020 arXiv
-
[108]
Bergsma et al., Search for Axion Like Particle Production in 400- GeV Proton - Copper Interactions , Phys
CHARM Collaboration, F. Bergsma et al., Search for Axion Like Particle Production in 400- GeV Proton - Copper Interactions , Phys. Lett. B 157 (1985) 458--462
1985
-
[109]
M. W. Winkler, Decay and detection of a light scalar boson mixing with the Higgs boson , Phys. Rev. D 99 (2019), no. 1 015018, [ http://arxiv.org/abs/1809.01876 arXiv:1809.01876 ]
2019 arXiv
-
[110]
Gorbunov, I
D. Gorbunov, I. Krasnov, and S. Suvorov, Constraints on light scalars from PS191 results , Phys. Lett. B 820 (2021) 136524, [ http://arxiv.org/abs/2105.11102 arXiv:2105.11102 ]
2021 arXiv
-
[111]
M. S. Turner, Axions from SN 1987a , Phys. Rev. Lett. 60 (1988) 1797
1988
-
[112]
J. R. Ellis and K. A. Olive, Constraints on Light Particles From Supernova Sn1987a , Phys. Lett. B 193 (1987) 525
1987
-
[113]
Krnjaic, Probing Light Thermal Dark-Matter With a Higgs Portal Mediator , Phys
G. Krnjaic, Probing Light Thermal Dark-Matter With a Higgs Portal Mediator , Phys. Rev. D 94 (2016), no. 7 073009, [ http://arxiv.org/abs/1512.04119 arXiv:1512.04119 ]
2016 arXiv
-
[114]
Batell, J
B. Batell, J. Berger, and A. Ismail, Probing the Higgs Portal at the Fermilab Short-Baseline Neutrino Experiments , Phys. Rev. D 100 (2019), no. 11 115039, [ http://arxiv.org/abs/1909.11670 arXiv:1909.11670 ]
2019
-
[115]
P. S. B. Dev, R. N. Mohapatra, and Y. Zhang, Revisiting supernova constraints on a light CP-even scalar , JCAP 08 (2020) 003, [ http://arxiv.org/abs/2005.00490 arXiv:2005.00490 ]. [Erratum: JCAP 11, E01 (2020)]
2020 arXiv
-
[116]
Balaji, P
S. Balaji, P. S. B. Dev, J. Silk, and Y. Zhang, Improved stellar limits on a light CP-even scalar , JCAP 12 (2022) 024, [ http://arxiv.org/abs/2205.01669 arXiv:2205.01669 ]
2022 arXiv
-
[117]
Aaij et al., Search for hidden-sector bosons in B^0 \! K^ *0 ^+ ^- decays , Phys
LHCb Collaboration, R. Aaij et al., Search for hidden-sector bosons in B^0 \! K^ *0 ^+ ^- decays , Phys. Rev. Lett. 115 (2015), no. 16 161802, [ http://arxiv.org/abs/1508.04094 arXiv:1508.04094 ]
2015 arXiv
-
[118]
Aaij et al., Search for long-lived scalar particles in B^+ K^+ ( ^+ ^-) decays , Phys
LHCb Collaboration, R. Aaij et al., Search for long-lived scalar particles in B^+ K^+ ( ^+ ^-) decays , Phys. Rev. D 95 (2017), no. 7 071101, [ http://arxiv.org/abs/1612.07818 arXiv:1612.07818 ]
2017 arXiv
-
[119]
BaBar Collaboration, J. P. Lees et al., Search for B K^ (*) and invisible quarkonium decays , Phys. Rev. D 87 (2013), no. 11 112005, [ http://arxiv.org/abs/1303.7465 arXiv:1303.7465 ]
2013 arXiv
-
[120]
Cortina Gil et al., Measurement of the very rare K ^ + ^ + decay , JHEP 06 (2021) 093, [ http://arxiv.org/abs/2103.15389 arXiv:2103.15389 ]
NA62 Collaboration, E. Cortina Gil et al., Measurement of the very rare K ^ + ^ + decay , JHEP 06 (2021) 093, [ http://arxiv.org/abs/2103.15389 arXiv:2103.15389 ]
2021 arXiv
-
[121]
Abratenko et al., Search for a Higgs Portal Scalar Decaying to Electron-Positron Pairs in the MicroBooNE Detector , Phys
MicroBooNE Collaboration, P. Abratenko et al., Search for a Higgs Portal Scalar Decaying to Electron-Positron Pairs in the MicroBooNE Detector , Phys. Rev. Lett. 127 (2021), no. 15 151803, [ http://arxiv.org/abs/2106.00568 arXiv:2106.00568 ]
2021 arXiv
-
[122]
BNL-E949 Collaboration, A. V. Artamonov et al., Study of the decay K^+ ^+ in the momentum region 140 < P_ < 199 MeV/c , Phys. Rev. D 79 (2009) 092004, [ http://arxiv.org/abs/0903.0030 arXiv:0903.0030 ]
2009 arXiv
-
[123]
Particle Data Group Collaboration, R. L. Workman et al., Review of Particle Physics , PTEP 2022 (2022) 083C01
2022
-
[124]
Aaij et al., Searches for 25 rare and forbidden decays of D^ + and D _s^ + mesons , JHEP 06 (2021) 044, [ http://arxiv.org/abs/2011.00217 arXiv:2011.00217 ]
LHCb Collaboration, R. Aaij et al., Searches for 25 rare and forbidden decays of D^ + and D _s^ + mesons , JHEP 06 (2021) 044, [ http://arxiv.org/abs/2011.00217 arXiv:2011.00217 ]
2021
-
[125]
Acciarri et al., Search for neutral Higgs boson production through the process e+ e- -- > Z* H0 , Phys
L3 Collaboration, M. Acciarri et al., Search for neutral Higgs boson production through the process e+ e- -- > Z* H0 , Phys. Lett. B 385 (1996) 454--470
1996
-
[126]
Buskulic et al., Search for a nonminimal Higgs boson produced in the reaction e^ + e^ - h Z^ * , Phys
ALEPH Collaboration, D. Buskulic et al., Search for a nonminimal Higgs boson produced in the reaction e^ + e^ - h Z^ * , Phys. Lett. B 313 (1993) 312--325
1993
-
[127]
Abbiendi et al., Search for invisibly decaying Higgs bosons in e+ e- --- > Z0 h0 production at s**(1/2) = 183-GeV - 209-GeV , Phys
OPAL Collaboration, G. Abbiendi et al., Search for invisibly decaying Higgs bosons in e+ e- --- > Z0 h0 production at s**(1/2) = 183-GeV - 209-GeV , Phys. Lett. B 682 (2010) 381--390, [ http://arxiv.org/abs/0707.0373 arXiv:0707.0373 ]
2010 arXiv
-
[128]
J. D. Clarke, R. Foot, and R. R. Volkas, Phenomenology of a very light scalar (100 MeV < m_h < 10 GeV) mixing with the SM Higgs , JHEP 02 (2014) 123, [ http://arxiv.org/abs/1310.8042 arXiv:1310.8042 ]
2014 arXiv
-
[129]
Aad et al., Combination of searches for invisible decays of the Higgs boson using 139 fb - 1 of proton-proton collision data at s=13 TeV collected with the ATLAS experiment , Phys
ATLAS Collaboration, G. Aad et al., Combination of searches for invisible decays of the Higgs boson using 139 fb - 1 of proton-proton collision data at s=13 TeV collected with the ATLAS experiment , Phys. Lett. B 842 (2023) 137963, [ http://arxiv.org/abs/2301.10731 arXiv:2301.10731 ]
2023 arXiv
-
[130]
CMS Collaboration, A. Tumasyan et al., A search for decays of the Higgs boson to invisible particles in events with a top-antitop quark pair or a vector boson in proton-proton collisions at s = 13\, Te -.08em V , Eur. Phys. J. C 83 (2023), no. 10 933, [ http://arxiv.org/abs/23...
2023 arXiv
-
[131]
ATLAS Collaboration, M. Aaboud et al., Search for the Higgs boson produced in association with a vector boson and decaying into two spin-zero particles in the H aa 4b channel in pp collisions at s = 13 TeV with the ATLAS detector , JHEP 10 (2018) 031, [ http://arxiv.org/abs/18...
2018 arXiv
-
[132]
CMS Collaboration, A. Hayrapetyan et al., Search for the decay of the Higgs boson to a pair of light pseudoscalar bosons in the final state with four bottom quarks in proton-proton collisions at s = 13 TeV , JHEP 06 (2024) 097, [ http://arxiv.org/abs/2403.10341 arXiv:2403.10341 ]
2024 arXiv
-
[133]
CMS Collaboration, A. M. Sirunyan et al., Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two b quarks and two leptons in proton-proton collisions at s = 13 TeV , Phys. Lett. B 785 (2018) 462, [ http://arxiv.org/abs/1805.1...
2018 arXiv
-
[134]
CMS Collaboration, A. M. Sirunyan et al., A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV , Phys. Lett. B 796 (2019) 131--154, [ http://arxiv.org/abs/1812.00380 arXiv:1812.00380 ]
2019 arXiv
-
[135]
Aad et al., Search for Higgs boson decays into a pair of pseudoscalar particles in the bb final state with the ATLAS detector in pp collisions at s =13 \, \, TeV , Phys
ATLAS Collaboration, G. Aad et al., Search for Higgs boson decays into a pair of pseudoscalar particles in the bb final state with the ATLAS detector in pp collisions at s =13 \, \, TeV , Phys. Rev. D 105 (2022), no. 1 012006, [ http://arxiv.org/abs/2110.00313 arXiv:2110.00313 ]
2022 arXiv
-
[136]
CMS Collaboration, A. M. Sirunyan et al., Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state with two muons and two b quarks in pp collisions at 13 TeV , Phys. Lett. B 795 (2019) 398--423, [ http://arxiv.org/abs/1812.06359 arXiv:1...
2019 arXiv
-
[137]
CMS Collaboration, A. M. Sirunyan et al., Search for light pseudoscalar boson pairs produced from decays of the 125 GeV Higgs boson in final states with two muons and two nearby tracks in pp collisions at s = 13 TeV , Phys. Lett. B 800 (2020) 135087, [ http://arxiv.org/abs/190...
2020 arXiv
-
[138]
CMS Collaboration, A. M. Sirunyan et al., Search for an exotic decay of the Higgs boson to a pair of light pseudoscalars in the final state of two muons and two leptons in proton-proton collisions at s =13 TeV , JHEP 11 (2018) 018, [ http://arxiv.org/abs/1805.04865 arXiv:1805.04865 ]
2018 arXiv
-
[139]
N. Chen, T. Han, S. Su, W. Su, and Y. Wu, Type-II 2HDM under the Precision Measurements at the Z -pole and a Higgs Factory , JHEP 03 (2019) 023, [ http://arxiv.org/abs/1808.02037 arXiv:1808.02037 ]
2019 arXiv
-
[140]
Erler and A
J. Erler and A. Freitas, Electroweak model and constraints on new physics , pdg.lbl.gov/2020/reviews/rpp2020-rev-standard-model https://pdg.lbl.gov/2020/reviews/rpp2020-rev-standard-model.pdf (2020)
2020
-
[141]
Erler and A
J. Erler and A. Freitas, Electroweak model and constraints on new physics , pdg.lbl.gov/2022/reviews/rpp2022-rev-standard-model https://pdg.lbl.gov/2022/reviews/rpp2022-rev-standard-model.pdf (2022)
2022
-
[142]
Erler and A
J. Erler and A. Freitas, Electroweak model and constraints on new physics , pdg.lbl.gov/2024/reviews/rpp2024-rev-standard-model https://pdg.lbl.gov/2024/reviews/rpp2024-rev-standard-model.pdf (2024)
2024
-
[143]
Schael et al., Precision electroweak measurements on the Z resonance , Phys
ALEPH, DELPHI, L3, OPAL, SLD, LEP Electroweak Working Group, SLD Electroweak Group, SLD Heavy Flavour Group Collaboration, S. Schael et al., Precision electroweak measurements on the Z resonance , Phys. Rept. 427 (2006) 257--454, [ http://arxiv.org/abs/hep-ex/0509008 hep-ex/0509008 ]
2006 arXiv
-
[144]
Erler and A
J. Erler and A. Freitas, Electroweak model and constraints on new physics , pdg.lbl.gov/2018/reviews/rpp2018-rev-standard-model https://pdg.lbl.gov/2018/reviews/rpp2018-rev-standard-model.pdf (2018)
2018
-
[145]
H. E. Haber and O. St a l, New LHC benchmarks for the CP -conserving two-Higgs-doublet model , Eur. Phys. J. C 75 (2015), no. 10 491, [ http://arxiv.org/abs/1507.04281 arXiv:1507.04281 ]. [Erratum: Eur.Phys.J.C 76, 312 (2016)]
2015 arXiv
-
[146]
Arbey, F
A. Arbey, F. Mahmoudi, O. Stal, and T. Stefaniak, Status of the Charged Higgs Boson in Two Higgs Doublet Models , Eur. Phys. J. C 78 (2018), no. 3 182, [ http://arxiv.org/abs/1706.07414 arXiv:1706.07414 ]
2018 arXiv
-
[147]
Sirlin and A
A. Sirlin and A. Ferroglia, Radiative Corrections in Precision Electroweak Physics: a Historical Perspective , Rev. Mod. Phys. 85 (2013), no. 1 263--297, [ http://arxiv.org/abs/1210.5296 arXiv:1210.5296 ]
2013 arXiv
-
[148]
Abreu et al., The FASER detector , JINST 19 (2024), no
FASER Collaboration, H. Abreu et al., The FASER detector , JINST 19 (2024), no. 05 P05066, [ http://arxiv.org/abs/2207.11427 arXiv:2207.11427 ]
2024
-
[149]
J. L. Feng et al., The Forward Physics Facility at the High-Luminosity LHC , J. Phys. G 50 (2023), no. 3 030501, [ http://arxiv.org/abs/2203.05090 arXiv:2203.05090 ]
2023 arXiv
-
[150]
Adhikary et al., Scientific program for the Forward Physics Facility , Eur
J. Adhikary et al., Scientific program for the Forward Physics Facility , Eur. Phys. J. C 85 (2025), no. 4 430, [ http://arxiv.org/abs/2411.04175 arXiv:2411.04175 ]
2025 arXiv
Reviewed August 15, 2026 · model on record in the stance chip above.
Discussion (0). Continue with ORCID to comment.