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NLO electroweak corrections in general scalar singlet models
High Energy Physics - Phenomenology · Submitted 7 Apr 2017
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We conclude that, for the currently allowed parameter space of these models, the corrections can be at most a few percent.
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
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The abstract, sentence by sentence
If no new physics signals are found, in the coming years, at the Large Hadron Collider Run-2, an increase in precision of the Higgs couplings measurements will shift the dicussion to the effects of higher order corrections. In Beyond the Standard Model (BSM) theories this may become the only tool to probe new physics. Extensions of the Standard Model (SM) with several scalar singlets may address several of its problems, namely to explain dark matter, the matter-antimatter asymmetry, or to improve the stability of the SM up to the Planck scale. In this work we propose a general framework to calculate one loop-corrections in BSM models with an arbitrary number of scalar singlets. We then apply our method to a real and to a complex scalar singlet models. We assess the importance of the one-loop radiative corrections first by computing them for a tree level mixing sum constraint, and then for the main Higgs production process $gg \to H$. We conclude that, for the currently allowed parameter space of these models, the corrections can be at most a few percent. Notably, a non-zero correction can survive when dark matter is present, in the SM-like limit of the Higgs couplings to other SM particles.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | If no new physics signals are found, in the coming years, at the Large Hadron Collider Run-2, an increase in precision of the Higgs couplings measurements will shift the dicussion to the effects of higher order corrections. | background 1.00 | 0.05 | 0.02 | hedged possibility 0.58 |
| s1 | In Beyond the Standard Model (BSM) theories this may become the only tool to probe new physics. | background 0.95 | 0.05 | 0.03 | hedged possibility 1.00 |
| s2 | Extensions of the Standard Model (SM) with several scalar singlets may address several of its problems, namely to explain dark matter, the matter-antimatter asymmetry, or to improve the stability of the SM up to the Planck scale. | background 1.00 | 0.05 | 0.02 | hedged possibility 0.98 |
| s3 | In this work we propose a general framework to calculate one loop-corrections in BSM models with an arbitrary number of scalar singlets. | contribution 0.96 | 0.91 | 0.04 | asserted 0.96 |
| s4 | We then apply our method to a real and to a complex scalar singlet models. | contribution 0.50 | 0.94 | 0.02 | asserted 0.95 |
| s5 | We assess the importance of the one-loop radiative corrections first by computing them for a tree level mixing sum constraint, and then for the main Higgs production process $gg \to H$. | method 0.82 | 0.96 | 0.05 | asserted 0.97 |
| s6 | We conclude that, for the currently allowed parameter space of these models, the corrections can be at most a few percent. | result 1.00 | 0.94 | 0.87 | asserted 0.73 |
| s7 | Notably, a non-zero correction can survive when dark matter is present, in the SM-like limit of the Higgs couplings to other SM particles. | result 0.83 | 0.88 | 0.14 | asserted 0.98 |
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The paper
Original abstract
If no new physics signals are found, in the coming years, at the Large Hadron Collider Run-2, an increase in precision of the Higgs couplings measurements will shift the dicussion to the effects of higher order corrections. In Beyond the Standard Model (BSM) theories this may become the only tool to probe new physics. Extensions of the Standard Model (SM) with several scalar singlets may address several of its problems, namely to explain dark matter, the matter-antimatter asymmetry, or to improve the stability of the SM up to the Planck scale. In this work we propose a general framework to calculate one loop-corrections in BSM models with an arbitrary number of scalar singlets. We then apply our method to a real and to a complex scalar singlet models. We assess the importance of the one-loop radiative corrections first by computing them for a tree level mixing sum constraint, and then for the main Higgs production process $gg \to H$. We conclude that, for the currently allowed parameter space of these models, the corrections can be at most a few percent. Notably, a non-zero correction can survive when dark matter is present, in the SM-like limit of the Higgs couplings to other SM particles.
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References
How the literature uses it
1 arXiv paper cite this in 1 sentence
Papers citing it
Cites it as background 1 paper
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Electroweak corrections to the singlet extended SM have been studied before [ref] , including full one-loop corrections to the $Z-h_1$ couplings [ref] .
Non-resonant Collider Signatures of a Singlet-Driven Electroweak Phase Transition · Appendix D: Calculation of $δ_Zh$ · 0.93
What it cites · 56 sentences without a confident label
Uses the method or tool of 1 paper
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We also point out that our general procedure is well suited for the automation of such corrections within a general purpose numerical tool such as [ref] .
ScannerS: Constraining the phase diagram of a complex scalar singlet at the LHC · Conclusions · 0.92
Uses data or values from 4 papers
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We will use the samples that were generated in [ref] , which are compatible with all the latest theoretical and phenomenological constraints.
Singlet Extensions of the Standard Model at LHC Run 2: Benchmarks and Comparison with the NMSSM · The complex singlet model (CxSM) · 0.89
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The factor $C_hhf$ was computed[In [ref] $C_hhf$ is denoted by $C_1^σ_ggF$ ] in [ref] , so we use the value $C_hhf=0.0066$, which is independent of the centre of mass energy.
Probing the Higgs self coupling via single Higgs production at the LHC · NLO gluon fusion cross section · 0.96
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The factor $C_hhf$ was computed[In [ref] $C_hhf$ is denoted by $C_1^σ_ggF$ ] in [ref] , so we use the value $C_hhf=0.0066$, which is independent of the centre of mass energy.
Two-loop electroweak corrections to Higgs production at hadron colliders · NLO gluon fusion cross section · 0.96
Compares with 1 paper
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In particular we get that in the SM limit the corresponding contribution is [equation] in agreement with [ref] .
Probing the Higgs self coupling via single Higgs production at the LHC · NLO gluon fusion cross section · 0.92
Cites as support 1 paper
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Away from these thresholds this approximation is known to work well – see for example Figs. 6 and 7 of [ref] for the EW corrections to gluon fusion around the $WW$ threshold in the SM.
Two-Loop Threshold Singularities, Unstable Particles and Complex Masses · NLO gluon fusion cross section · 0.97
Cites as background 7 papers
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Both the RxSM and the CxSM were recently analysed in light of the LHC run-1 data, and compared with the NMSSM to determine if they could be distinguished from the latter in the Higgs sector [ref] .
Singlet Extensions of the Standard Model at LHC Run 2: Benchmarks and Comparison with the NMSSM · The complex singlet model (CxSM) · 0.89
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Both the RxSM and the CxSM were recently analysed in light of the LHC run-1 data, and compared with the NMSSM to determine if they could be distinguished from the latter in the Higgs sector [ref] .
Two-loop stability of a complex singlet extended Standard Model · The complex singlet model (CxSM) · 0.89
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Higher order corrections to singlet extensions of the SM have been performed in [ref] .
Radiative corrections to the Higgs boson couplings in the model with an additional real singlet scalar field · Introduction · 0.97
Discussion
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