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arxiv: 2605.27875 · v1 · pith:XZILML4Cnew · submitted 2026-05-27 · ✦ hep-ex

Search for light scalar particles produced in Higgs boson decays in exclusive final states with two muons and two hadrons in proton-proton collisions at sqrt{s} = 13 TeV

CMS Collaboration This is my paper

Pith reviewed 2026-06-29 09:46 UTC · model grok-4.3

classification ✦ hep-ex
keywords Higgs decayslight scalarsexotic decaysCMSLHC collisionsmuon hadron pairsbranching fractiondisplaced vertices
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The pith

The CMS Collaboration reports upper limits of order 10^{-4} on the branching fraction of the Higgs boson to pairs of light scalar particles.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper searches for light scalar particles with masses between 0.4 and 2.0 GeV produced in exotic decays of the Higgs boson. It examines proton-proton collision data collected at 13 TeV, looking for signatures of two collimated muon pairs and two hadron pairs that could come from the scalars decaying. No excess events beyond expected backgrounds are found in the data corresponding to 138 fb^{-1}. This result sets new upper limits on the Higgs branching fraction to these scalars at the level of 10^{-4} for various masses and decay lengths up to 1 mm. The approach is novel in its focus on hadronic decays in this mass window.

Core claim

The analysis targets Higgs boson decays to pairs of identical scalar particles that each decay to a muon pair or a pair of charged hadrons. With no observed signal in the exclusive final states, the paper establishes upper limits on the branching fraction at O(10^{-4}) for scalar masses from 0.4 to 2.0 GeV and proper decay lengths up to approximately 1 mm.

What carries the argument

The central mechanism is the identification of collimated pairs of muons and hadrons from the decays of the scalar particles, allowing separation of signal from background in both prompt and displaced vertex scenarios.

If this is right

  • Constrains the parameter space for models with light scalars produced in Higgs decays.
  • Provides limits for both prompt and long-lived scalars with decay lengths up to 1 mm.
  • Improves sensitivity to very light scalar masses where hadronic decays are prominent.
  • Shows the viability of using mixed muon-hadron final states for such searches.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Future data taking could tighten these limits further by increasing the integrated luminosity.
  • Similar techniques might apply to searches for other light particles in Higgs decays at the LHC.
  • The results could inform theoretical models of extended scalar sectors or hidden sector particles.

Load-bearing premise

The limits rely on the accurate modeling and subtraction of standard model background processes in the regions defined by the collimated muon and hadron pairs.

What would settle it

Detection of a significant number of events above the predicted background in the signal regions would indicate the production of the scalar particles.

Figures

Figures reproduced from arXiv: 2605.27875 by CMS Collaboration.

Figure 1
Figure 1. Figure 1: The values of the S → K +K − and S → π +π − branching fractions as functions of the light scalar boson mass are taken from Refs. [12, 25]. The results of the search are interpreted as upper limits on the branching fraction of the Higgs boson into scalar bosons as functions of the scalar boson mass and decay length. H S S g g π +/K + π −/K − µ + µ − [PITH_FULL_IMAGE:figures/full_fig_p004_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Two-dimensional distribution of the invariant masses [PITH_FULL_IMAGE:figures/full_fig_p009_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: Two-dimensional distribution of the transverse displacement significance [PITH_FULL_IMAGE:figures/full_fig_p010_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: Four-object invariant mass distributions in data (black dots with error bars) and for [PITH_FULL_IMAGE:figures/full_fig_p012_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: Average diobject invariant mass distributions in the SR for the [PITH_FULL_IMAGE:figures/full_fig_p013_5.png] view at source ↗
Figure 6
Figure 6. Figure 6: The four-object invariant mass distribution for the 2016–2018 dataset in the [PITH_FULL_IMAGE:figures/full_fig_p014_6.png] view at source ↗
Figure 7
Figure 7. Figure 7: Observed (solid black line) and expected (dashed black line) exclusion limits on the [PITH_FULL_IMAGE:figures/full_fig_p017_7.png] view at source ↗
Figure 8
Figure 8. Figure 8: Observed (solid black line) and expected (dashed black line) exclusion limits on the [PITH_FULL_IMAGE:figures/full_fig_p017_8.png] view at source ↗
Figure 9
Figure 9. Figure 9: Observed upper limit on the branching fraction [PITH_FULL_IMAGE:figures/full_fig_p018_9.png] view at source ↗
read the original abstract

A search for new scalar particles of $\mathcal{O}$(GeV) mass in exclusive final states with muons and light hadrons is presented. The analysis uses proton-proton collision data produced at a center-of-mass energy of 13 TeV collected by the CMS experiment at the CERN LHC in 201$-$2018, corresponding to an integrated luminosity of 138 fb$^{-1}$. The search targets exotic decays of the Higgs boson to a pair of prompt or long-lived identical scalar particles with proper decay lengths $c\tau$ up to 100 mm and masses within the range of 0.4$-$2.0 GeV. This mass window corresponds to a unique parameter space where hadronic decays of these particles mostly result in a pair of light hadrons. The considered experimental signature is a collimated pair of muons and another pair of charged kaons or pions, each of which may be prompt or displaced. The analysis improves the sensitivity to very light scalar boson masses and demonstrates a novel approach to probe hadronic decays of light scalar bosons. Upper limits on the branching fraction of the Higgs boson to scalar bosons at the level of $\mathcal{O}$(10$^{-4}$) are obtained for several scalar boson masses between 0.4 and 2.0 GeV, with proper decay lengths of up to $\sim$1 mm.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

1 major / 1 minor

Summary. The manuscript presents a search for light scalar particles produced in Higgs boson decays to pairs of identical scalars, using exclusive final states consisting of two muons and two charged hadrons (kaons or pions) in CMS proton-proton collision data at 13 TeV with 138 fb^{-1} integrated luminosity. The analysis targets scalar masses in 0.4-2.0 GeV and proper decay lengths cτ up to 100 mm, setting upper limits on the Higgs branching fraction to these scalars at the O(10^{-4}) level for several masses with cτ up to ~1 mm.

Significance. If the central result holds after validation, the work would constrain light scalar models in a mass window where hadronic decays dominate, using a novel collimated muon-hadron signature that improves sensitivity at very low masses. The large dataset and inclusion of displaced vertices contribute to the reach.

major comments (1)
  1. [Abstract (background estimation and results sections)] The abstract states that limits are obtained after background subtraction in the collimated muon-hadron regions, but provides no quantitative details on background modeling (e.g., QCD multijet or Drell-Yan contributions), data/MC agreement, or control-region validation. Since the O(10^{-4}) limits scale directly with the accuracy of this subtraction, the absence of such validation makes it impossible to confirm that the background uncertainty is sub-dominant to the claimed sensitivity.
minor comments (1)
  1. [Abstract] The abstract reports limits only up to cτ ~1 mm while the search targets up to 100 mm; a brief clarification of the effective coverage after selections would improve clarity.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for the careful review. We address the single major comment below.

read point-by-point responses

  1. Referee: [Abstract (background estimation and results sections)] The abstract states that limits are obtained after background subtraction in the collimated muon-hadron regions, but provides no quantitative details on background modeling (e.g., QCD multijet or Drell-Yan contributions), data/MC agreement, or control-region validation. Since the O(10^{-4}) limits scale directly with the accuracy of this subtraction, the absence of such validation makes it impossible to confirm that the background uncertainty is sub-dominant to the claimed sensitivity.

    Authors: The abstract is necessarily concise. The full manuscript contains a dedicated Background Estimation section describing the data-driven modeling of QCD multijet and Drell-Yan backgrounds, together with explicit data/MC comparisons and control-region validations shown in the Results section. These studies confirm that the background uncertainty is sub-dominant to the statistical component in the signal regions used for the limit extraction. We are prepared to add one sentence to the abstract summarizing the data-driven subtraction approach if the editor considers it appropriate. revision: partial

Circularity Check

0 steps flagged

No circularity in experimental limit-setting analysis

full rationale

This is a standard CMS experimental search paper that extracts upper limits on Higgs branching fractions from 138 fb^{-1} of 13 TeV data by comparing observed events in signal regions (collimated muon-hadron pairs, mass windows 0.4-2.0 GeV, cτ up to ~1 mm) against modeled SM backgrounds. No equations, fits, or ansatzes are presented as 'predictions' that reduce to the inputs by construction; the result is data-driven and externally falsifiable via the observed counts. No self-citation chains or uniqueness theorems are invoked as load-bearing steps. The analysis is self-contained against external benchmarks (data/MC comparisons and control regions), yielding a normal non-finding of circularity.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

Experimental limit-setting paper with no free parameters, axioms, or invented entities; the result rests on data collection and background modeling assumptions standard to the field.

pith-pipeline@v0.9.1-grok · 5791 in / 1101 out tokens · 28181 ms · 2026-06-29T09:46:42.248992+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

68 extracted references · 60 canonical work pages · 27 internal anchors

  1. [1]

    Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

    ATLAS Collaboration, “Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC”,Phys. Lett. B716(2012) 1, doi:10.1016/j.physletb.2012.08.020,arXiv:1207.7214

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/j.physletb.2012.08.020 2012

  2. [2]

    Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC

    CMS Collaboration, “Observation of a new boson at a mass of 125 GeV with the CMS Experiment at the LHC”,Phys. Lett. B716(2012) 30, doi:10.1016/j.physletb.2012.08.021,arXiv:1207.7235

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/j.physletb.2012.08.021 2012

  3. [3]

    Broken symmetry and the mass of gauge vector mesons

    F. Englert and R. Brout, “Broken symmetry and the mass of gauge vector mesons”,Phys. Rev. Lett.13(1964) 321,doi:10.1103/PhysRevLett.13.321

    work page doi:10.1103/physrevlett.13.321 1964

  4. [4]

    Broken symmetries, massless particles and gauge fields

    P . W. Higgs, “Broken symmetries, massless particles and gauge fields”,Phys. Lett.12 (1964) 132,doi:10.1016/0031-9163(64)91136-9. References 19

    work page doi:10.1016/0031-9163(64)91136-9 1964

  5. [5]

    Broken symmetries and the masses of gauge bosons

    P . W. Higgs, “Broken symmetries and the masses of gauge bosons”,Phys. Rev. Lett.13 (1964) 508,doi:10.1103/PhysRevLett.13.508

    work page doi:10.1103/physrevlett.13.508 1964

  6. [6]

    Global conservation laws and massless particles

    G. S. Guralnik, C. R. Hagen, and T. W. B. Kibble, “Global conservation laws and massless particles”,Phys. Rev. Lett.13(1964) 585,doi:10.1103/PhysRevLett.13.585

    work page doi:10.1103/physrevlett.13.585 1964

  7. [7]

    A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery

    ATLAS Collaboration, “A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery”,Nature607(2022) 52, doi:10.1038/s41586-022-04893-w,arXiv:2207.00092. [Erratum: doi:10.1038/s41586-022-05581-5]

    work page doi:10.1038/s41586-022-04893-w 2022

  8. [8]

    A portrait of the Higgs boson by the CMS experiment ten years after the discovery

    CMS Collaboration, “A portrait of the Higgs boson by the CMS experiment ten years after the discovery.”,Nature607(2022) 60,doi:10.1038/s41586-022-04892-x, arXiv:2207.00043. [Erratum:doi:10.1038/s41586-023-06164-8]

    work page doi:10.1038/s41586-022-04892-x 2022

  9. [9]

    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

    ATLAS Collaboration, “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. B842(2023) 137963, doi:10.1016/j.physletb.2023.137963,arXiv:2301.10731

    work page doi:10.1016/j.physletb.2023.137963 2023

  10. [10]

    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 TeV

    CMS Collaboration, “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 TeV”,Eur. Phys. J. C83(2023) 933, doi:10.1140/epjc/s10052-023-11952-7,arXiv:2303.01214

    work page doi:10.1140/epjc/s10052-023-11952-7 2023

  11. [11]

    Phenomenology of a very light scalar (100 MeV $<m_h<$ 10 GeV) mixing with the SM Higgs

    J. D. Clarke, R. Foot, and R. R. Volkas, “Phenomenology of a very light scalar (100 MeV< mh <10 GeV) mixing with the SM Higgs”,JHEP02(2014) 123, doi:10.1007/JHEP02(2014)123,arXiv:1310.8042

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/jhep02(2014)123 2014

  12. [12]

    Decay and Detection of a Light Scalar Boson Mixing with the Higgs

    M. W. Winkler, “Decay and detection of a light scalar boson mixing with the Higgs boson”,Phys. Rev. D99(2019) 015018,doi:10.1103/PhysRevD.99.015018, arXiv:1809.01876

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1103/physrevd.99.015018 2019

  13. [13]

    Phenomenology of GeV-scale scalar portal

    I. Boiarska et al., “Phenomenology of GeV-scale scalar portal”,JHEP11(2019) 162, doi:10.1007/JHEP11(2019)162,arXiv:1904.10447

    work page doi:10.1007/jhep11(2019)162 2019

  14. [14]

    The $\nu$MSM, Inflation, and Dark Matter

    M. Shaposhnikov and I. Tkachev, “The nuMSM, inflation, and dark matter”,Phys. Lett. B 639(2006) 414,doi:10.1016/j.physletb.2006.06.063, arXiv:hep-ph/0604236

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/j.physletb.2006.06.063 2006

  15. [15]

    Light inflaton Hunter's Guide

    F. Bezrukov and D. Gorbunov, “Light inflaton hunter’s guide”,JHEP05(2010) 010, doi:10.1007/JHEP05(2010)010,arXiv:0912.0390

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/jhep05(2010)010 2010

  16. [16]

    Light inflaton after LHC8 and WMAP9 results

    F. Bezrukov and D. Gorbunov, “Light inflaton after LHC8 and WMAP9 results”,JHEP 07(2013) 140,doi:10.1007/JHEP07(2013)140,arXiv:1303.4395

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/jhep07(2013)140 2013

  17. [17]

    Supergauge invariant extension of the Higgs mechanism and a model for the electron and its neutrino

    P . Fayet, “Supergauge invariant extension of the Higgs mechanism and a model for the electron and its neutrino”,Nucl. Phys. B90(1975) 104, doi:10.1016/0550-3213(75)90636-7

    work page doi:10.1016/0550-3213(75)90636-7 1975

  18. [18]

    The Next-to-Minimal Supersymmetric Standard Model

    U. Ellwanger, C. Hugonie, and A. M. Teixeira, “The Next-to-Minimal Supersymmetric Standard Model”,Phys. Rept.496(2010) 1,doi:10.1016/j.physrep.2010.07.001, arXiv:0910.1785. 20

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/j.physrep.2010.07.001 2010

  19. [19]

    Secluded WIMP Dark Matter

    M. Pospelov, A. Ritz, and M. B. Voloshin, “Secluded WIMP Dark Matter”,Phys. Lett. B 662(2008) 53,doi:10.1016/j.physletb.2008.02.052,arXiv:0711.4866

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/j.physletb.2008.02.052 2008

  20. [20]

    Probing light thermal dark matter with a Higgs portal mediator

    G. Krnjaic, “Probing light thermal dark matter with a Higgs portal mediator”,Phys. Rev. D94(2016) 073009,doi:10.1103/PhysRevD.94.073009

    work page doi:10.1103/physrevd.94.073009 2016

  21. [21]

    Cosmological relaxation of the electroweak scale

    P . W. Graham, D. E. Kaplan, and S. Rajendran, “Cosmological relaxation of the electroweak scale”,Phys. Rev. Lett.115(2015) 221801, doi:10.1103/PhysRevLett.115.221801

    work page doi:10.1103/physrevlett.115.221801 2015

  22. [22]

    Dark Higgs bosons at colliders

    T. Ferber, A. Grohsjean, and F. Kahlhoefer, “Dark Higgs bosons at colliders”,Prog. Part. Nucl. Phys.136(2024) 104105,doi:10.1016/j.ppnp.2024.104105, arXiv:2305.16169

    work page doi:10.1016/j.ppnp.2024.104105 2024

  23. [23]

    Dark sector searches with the CMS experiment

    CMS Collaboration, “Dark sector searches with the CMS experiment”,Phys. Rept.1115 (2025) 448,doi:10.1016/j.physrep.2024.09.013,arXiv:2405.13778

    work page doi:10.1016/j.physrep.2024.09.013 2025

  24. [24]

    Exclusive displaced hadronic signatures in the LHC forward region

    X. Cid Vidal, Y. Tsai, and J. Zurita, “Exclusive displaced hadronic signatures in the LHC forward region”,JHEP01(2020) 115,doi:10.1007/JHEP01(2020)115, arXiv:1910.05225

    work page doi:10.1007/jhep01(2020)115 2020

  25. [25]

    Probing naturally light singlets with a displaced vertex trigger

    Y. Gershtein, S. Knapen, and D. Redigolo, “Probing naturally light singlets with a displaced vertex trigger”,Phys. Lett. B823(2021) 136758, doi:10.1016/j.physletb.2021.136758,arXiv:2012.07864

    work page doi:10.1016/j.physletb.2021.136758 2021

  26. [26]

    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

    CMS Collaboration, “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”, JHEP04(2022) 062,doi:10.1007/JHEP04(2022)062,arXiv:2112.13769

    work page doi:10.1007/jhep04(2022)062 2022

  27. [27]

    Model-independent search for pair production of new bosons decaying into muons in proton-proton collisions at √s= 13 TeV

    CMS Collaboration, “Model-independent search for pair production of new bosons decaying into muons in proton-proton collisions at √s= 13 TeV”,JHEP12(2024) 172, doi:10.1007/JHEP12(2024)172,arXiv:2407.20425

    work page doi:10.1007/jhep12(2024)172 2024

  28. [28]

    Search for long-lived particles decaying in the CMS muon detectors in proton-proton collisions at √s= 13 TeV

    CMS Collaboration, “Search for long-lived particles decaying in the CMS muon detectors in proton-proton collisions at √s= 13 TeV”,Phys. Rev. D110(2024) 032007, doi:10.1103/PhysRevD.110.032007,arXiv:2402.01898

    work page doi:10.1103/physrevd.110.032007 2024

  29. [29]

    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

    ATLAS Collaboration, “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”,JHEP06(2023) 153,doi:10.1007/JHEP06(2023)153, arXiv:2206.12181

    work page doi:10.1007/jhep06(2023)153 2023

  30. [30]

    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

    ATLAS Collaboration, “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. C84(2024) 719, doi:10.1140/epjc/s10052-024-12902-7,arXiv:2311.18298

    work page doi:10.1140/epjc/s10052-024-12902-7 2024

  31. [31]

    Search for hidden-sector bosons in $B^0 \!\to K^{*0}\mu^+\mu^-$ decays

    LHCb Collaboration, “Search for hidden-sector bosons inB 0 →K ∗0µ+µ− decays”,Phys. Rev. Lett.115(2015) 161802,doi:10.1103/PhysRevLett.115.161802, arXiv:1508.04094

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1103/physrevlett.115.161802 2015

  32. [32]

    Search for long-lived scalar particles in $B^+ \to K^+ \chi (\mu^+\mu^-)$ decays

    LHCb Collaboration, “Search for long-lived scalar particles inB + →K +χ(µ+µ−) decays”,Phys. Rev. D95(2017) 071101,doi:10.1103/PhysRevD.95.071101, arXiv:1612.07818. References 21

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1103/physrevd.95.071101 2017

  33. [33]

    HEPData record for this analysis

    “HEPData record for this analysis”, 2026.doi:10.17182/hepdata.166215

    work page doi:10.17182/hepdata.166215 2026

  34. [34]

    The CMS experiment at the CERN LHC

    CMS Collaboration, “The CMS experiment at the CERN LHC”,JINST3(2008) S08004, doi:10.1088/1748-0221/3/08/S08004

    work page doi:10.1088/1748-0221/3/08/s08004 2008

  35. [35]

    Development of the CMS detector for the CERN LHC Run 3

    CMS Collaboration, “Development of the CMS detector for the CERN LHC Run 3”, JINST19(2024) P05064,doi:10.1088/1748-0221/19/05/P05064

    work page doi:10.1088/1748-0221/19/05/p05064 2024

  36. [36]

    Performance of the CMS Level-1 trigger in proton-proton collisions at √s=13 TeV

    CMS Collaboration, “Performance of the CMS Level-1 trigger in proton-proton collisions at √s=13 TeV”,JINST15(2020) P10017, doi:10.1088/1748-0221/15/10/P10017,arXiv:2006.10165

    work page doi:10.1088/1748-0221/15/10/p10017 2020

  37. [37]

    The CMS trigger system

    CMS Collaboration, “The CMS trigger system”,JINST12(2017) P01020, doi:10.1088/1748-0221/12/01/P01020,arXiv:1609.02366

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/1748-0221/12/01/p01020 2017

  38. [38]

    Performance of the CMS high-level trigger during LHC Run 2

    CMS Collaboration, “Performance of the CMS high-level trigger during LHC Run 2”, JINST19(2024) P11021,doi:10.1088/1748-0221/19/11/P11021, arXiv:2410.17038

    work page doi:10.1088/1748-0221/19/11/p11021 2024

  39. [39]

    Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC

    CMS Collaboration, “Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC”,JINST16(2021) P05014, doi:10.1088/1748-0221/16/05/P05014,arXiv:2012.06888

    work page doi:10.1088/1748-0221/16/05/p05014 2021

  40. [40]

    Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at $\sqrt{s}=$ 13 TeV

    CMS Collaboration, “Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at √s=13 TeV”,JINST13(2018) P06015, doi:10.1088/1748-0221/13/06/P06015,arXiv:1804.04528

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/1748-0221/13/06/p06015 2018

  41. [41]

    Description and performance of track and primary-vertex reconstruction with the CMS tracker

    CMS Collaboration, “Description and performance of track and primary-vertex reconstruction with the CMS tracker”,JINST9(2014) P10009, doi:10.1088/1748-0221/9/10/P10009,arXiv:1405.6569

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/1748-0221/9/10/p10009 2014

  42. [42]

    The CMS phase-1 pixel detector upgrade

    CMS Tracker Group Collaboration, “The CMS phase-1 pixel detector upgrade”,JINST 16(2021) P02027,doi:10.1088/1748-0221/16/02/P02027,arXiv:2012.14304

    work page doi:10.1088/1748-0221/16/02/p02027 2021

  43. [43]

    Track impact parameter resolution for the full pseudorapidity coverage in the 2017 dataset with the CMS phase-1 pixel detector

    CMS Collaboration, “Track impact parameter resolution for the full pseudorapidity coverage in the 2017 dataset with the CMS phase-1 pixel detector”, CMS Detector Performance Summary CMS-DP-2020-049, 2020

    2017

  44. [44]

    2017 tracking performance plots

    CMS Collaboration, “2017 tracking performance plots”, CMS Detector Performance Summary CMS-DP-2017-015, 2017

    2017

  45. [45]

    Particle-flow reconstruction and global event description with the CMS detector

    CMS Collaboration, “Particle-flow reconstruction and global event description with the CMS detector”,JINST12(2017) P10003,doi:10.1088/1748-0221/12/10/P10003, arXiv:1706.04965

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/1748-0221/12/10/p10003 2017

  46. [46]

    Technical proposal for the Phase-II upgrade of the Compact Muon Solenoid

    CMS Collaboration, “Technical proposal for the Phase-II upgrade of the Compact Muon Solenoid”, CMS Technical Proposal CMS-TDR-15-02, 2015

    2015

  47. [47]

    A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms

    P . Nason, “A new method for combining NLO QCD with shower Monte Carlo algorithms”,JHEP11(2004) 040,doi:10.1088/1126-6708/2004/11/040, arXiv:hep-ph/0409146

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/1126-6708/2004/11/040 2004

  48. [48]

    Matching NLO QCD computations with Parton Shower simulations: the POWHEG method

    S. Frixione, P . Nason, and C. Oleari, “Matching NLO QCD computations with Parton Shower simulations: the POWHEG method”,JHEP11(2007) 070, doi:10.1088/1126-6708/2007/11/070,arXiv:0709.2092. 22

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/1126-6708/2007/11/070 2007

  49. [49]

    A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX

    S. Alioli, P . Nason, C. Oleari, and E. Re, “A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX”,JHEP06(2010) 043, doi:10.1007/JHEP06(2010)043,arXiv:1002.2581

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/jhep06(2010)043 2010

  50. [50]

    Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM

    E. Bagnaschi, G. Degrassi, P . Slavich, and A. Vicini, “Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM”,JHEP02(2012) 088, doi:10.1007/JHEP02(2012)088,arXiv:1111.2854

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/jhep02(2012)088 2012

  51. [51]

    An Introduction to PYTHIA 8.2

    T. Sj ¨ostrand et al., “An introduction to PYTHIA 8.2”,Comput. Phys. Commun.191(2015) 159,doi:10.1016/j.cpc.2015.01.024,arXiv:1410.3012

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/j.cpc.2015.01.024 2015

  52. [52]

    Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements

    CMS Collaboration, “Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements”,Eur. Phys. J. C80(2020) 4, doi:10.1140/epjc/s10052-019-7499-4,arXiv:1903.12179

    work page doi:10.1140/epjc/s10052-019-7499-4 2020

  53. [53]

    Parton distributions from high-precision collider data

    NNPDF Collaboration, “Parton distributions from high-precision collider data”,Eur. Phys. J. C77(2017) 663,doi:10.1140/epjc/s10052-017-5199-5, arXiv:1706.00428

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1140/epjc/s10052-017-5199-5 2017

  54. [54]

    GEANT4—a simulation toolkit

    GEANT4 Collaboration, “GEANT4—a simulation toolkit”,Nucl. Instrum. Meth. A506 (2003) 250,doi:10.1016/S0168-9002(03)01368-8

    work page doi:10.1016/s0168-9002(03)01368-8 2003

  55. [55]

    Simulation of the Silicon Strip Tracker pre-amplifier in early 2016 data

    CMS Collaboration, “Simulation of the Silicon Strip Tracker pre-amplifier in early 2016 data”, CMS Detector Performance Summary CMS-DP-2020-045, 2020

    2016

  56. [56]

    Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector

    LHC Higgs Cross Section Working Group, “Handbook of LHC Higgs cross sections: 4. Deciphering the nature of the Higgs sector”, CERN Report CERN-2017-002-M, 2016. doi:10.23731/CYRM-2017-002,arXiv:1610.07922

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.23731/cyrm-2017-002 2017

  57. [57]

    Displaced tracking and vertexing calibration using neutral K mesons

    CMS Collaboration, “Displaced tracking and vertexing calibration using neutral K mesons”, CMS Detector Performance Summary CMS-DP-2024-010, 2024

    2024

  58. [58]

    Tracking performances for charged pions with Run2 Legacy data

    CMS Collaboration, “Tracking performances for charged pions with Run2 Legacy data”, CMS Detector Performance Summary CMS-DP-2022-012, 2022

    2022

  59. [59]

    Search for long-lived particles decaying to a pair of muons in proton-proton collisions at √s= 13 TeV

    CMS Collaboration, “Search for long-lived particles decaying to a pair of muons in proton-proton collisions at √s= 13 TeV”,JHEP05(2023) 228, doi:10.1007/JHEP05(2023)228,arXiv:2205.08582

    work page doi:10.1007/jhep05(2023)228 2023

  60. [60]

    Measurements of Inclusive W and Z Cross Sections in pp Collisions at sqrt(s)=7 TeV

    CMS Collaboration, “Measurements of InclusiveWandZCross Sections inppCollisions at √s=7 TeV”,JHEP01(2011) 080,doi:10.1007/JHEP01(2011)080, arXiv:1012.2466

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/jhep01(2011)080 2011

  61. [61]

    Precision luminosity measurement in proton-proton collisions at√s=13 TeV in 2015 and 2016 at CMS

    CMS Collaboration, “Precision luminosity measurement in proton-proton collisions at√s=13 TeV in 2015 and 2016 at CMS”,Eur. Phys. J. C81(2021) 800, doi:10.1140/epjc/s10052-021-09538-2,arXiv:2104.01927

    work page doi:10.1140/epjc/s10052-021-09538-2 2015

  62. [62]

    CMS luminosity measurement for the 2017 data-taking period at√s=13 TeV

    CMS Collaboration, “CMS luminosity measurement for the 2017 data-taking period at√s=13 TeV”, CMS Physics Analysis Summary CMS-PAS-LUM-17-004, 2018

    2017

  63. [63]

    CMS luminosity measurement for the 2018 data-taking period at√s=13 TeV

    CMS Collaboration, “CMS luminosity measurement for the 2018 data-taking period at√s=13 TeV”, CMS Physics Analysis Summary CMS-PAS-LUM-18-002, 2019

    2018

  64. [64]

    Confidence Level Computation for Combining Searches with Small Statistics

    T. Junk, “Confidence level computation for combining searches with small statistics”, Nucl. Instrum. Meth. A434(1999) 435,doi:10.1016/S0168-9002(99)00498-2, arXiv:hep-ex/9902006. References 23

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1016/s0168-9002(99)00498-2 1999

  65. [65]

    Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV

    CMS Collaboration, “Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV”,Eur. Phys. J. C75(2015) 212, doi:10.1140/epjc/s10052-015-3351-7,arXiv:1412.8662

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1140/epjc/s10052-015-3351-7 2015

  66. [66]

    The CMS statistical analysis and combination tool: Combine

    CMS Collaboration, “The CMS statistical analysis and combination tool: Combine”, Comput. Softw. Big Sci.8(2024) 19,doi:10.1007/s41781-024-00121-4, arXiv:2404.06614

    work page doi:10.1007/s41781-024-00121-4 2024

  67. [67]

    The RooFit toolkit for data modeling

    W. Verkerke and D. Kirkby, “The ROOFITtoolkit for data modeling”, inProc. 13th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2003). 2003.arXiv:physics/0306116. [eConf C0303241, MOLT007]

    work page internal anchor Pith review Pith/arXiv arXiv 2003

  68. [68]

    The RooStats Project

    L. Moneta et al., “The RooStats project”,PoSACAT2010(2010) 057, doi:10.22323/1.093.0057,arXiv:1009.1003. 24 25 A The CMS Collaboration Yerevan Physics Institute, Yerevan, Armenia A. Hayrapetyan, V . Makarenko , A. Tumasyan1 Institut f ¨ ur Hochenergiephysik, Vienna, Austria W. Adam , L. Benato , T. Bergauer , M. Dragicevic , P .S. Hussain , M. Jeitler 2 ,...

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.22323/1.093.0057 2010