Simultaneous enhancement in gamma.gamma, b.b-bar and tau+.tau- rates in the NMSSM with nearly degenerate scalar and pseudoscalar Higgs bosons

Leszek Roszkowski; Sebastian Trojanowski; Shoaib Munir

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Simultaneous enhancement in gamma.gamma, b.b-bar and tau+.tau- rates in the NMSSM with nearly degenerate scalar and pseudoscalar Higgs bosons

Shoaib Munir, Leszek Roszkowski, Sebastian Trojanowski

High Energy Physics - Phenomenology · Submitted 2 May 2013

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We analyze the constrained NMSSM with non-universal Higgs sector parameters and identify regions of its parameter space where the lightest pseudoscalar with mass around 125 GeV and strongly enhanced gamma.gamma (up to 60%), b.b-bar and tau+.tau- rates in the b.b-bar.h mode can be obtained.

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arXiv ID1305.0591 (version 3)

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CitationLeszek Roszkowski, Sebastian Trojanowski, Shoaib Munir. "Simultaneous enhancement in gamma.gamma, b.b-bar and tau+.tau- rates in the NMSSM with nearly degenerate scalar and pseudoscalar Higgs bosons." arXiv:1305.0591 (2013). https://pith.science/paper/VVQLS6LG

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We propose an experimental test of a scenario in the Next-to-Minimal Supersymmetric Standard Model in which both the lightest scalar and the lightest pseudoscalar Higgs bosons have masses around 125 GeV. The pseudoscalar can contribute significantly to the gamma.gamma rate at the LHC due to light Higgsino-like charginos in its effective one-loop coupling to two photons. Such charginos are obtained for small values of the mu_eff parameter which also results in enhanced b.b-bar and tau+.tau- rates compared to those expected for a Standard Model Higgs boson. This scenario should result in a clear discrepancy between the observed rates in these three decay channels and those in the WW and ZZ channels, since the pseudoscalar does not couple to the W and Z bosons. However, in the dominant gluon fusion production mode the pseudoscalar will stay hidden behind the SM-like scalar Higgs boson and in order for it to be observable the associated b.b-bar.h production mode has to be considered, the cross section for which is tiny in the Standard Model but tan.beta-enhanced in supersymmetry. We analyze the constrained NMSSM with non-universal Higgs sector parameters and identify regions of its parameter space where the lightest pseudoscalar with mass around 125 GeV and strongly enhanced gamma.gamma (up to 60%), b.b-bar and tau+.tau- rates in the b.b-bar.h mode can be obtained.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We propose an experimental test of a scenario in the Next-to-Minimal Supersymmetric Standard Model in which both the lightest scalar and the lightest pseudoscalar Higgs bosons have masses around 125 GeV.	contribution 0.89	0.76	0.12	asserted 0.59
s1	The pseudoscalar can contribute significantly to the gamma.gamma rate at the LHC due to light Higgsino-like charginos in its effective one-loop coupling to two photons.	interpretation 0.30	0.24	0.08	hedged possibility 0.77
s2	Such charginos are obtained for small values of the mu_eff parameter which also results in enhanced b.b-bar and tau+.tau- rates compared to those expected for a Standard Model Higgs boson.	interpretation 0.47	0.33	0.10	asserted 0.99
s3	This scenario should result in a clear discrepancy between the observed rates in these three decay channels and those in the WW and ZZ channels, since the pseudoscalar does not couple to the W and Z bosons.	interpretation 0.86	0.26	0.20	asserted 0.56
s4	However, in the dominant gluon fusion production mode the pseudoscalar will stay hidden behind the SM-like scalar Higgs boson and in order for it to be observable the associated b.b-bar.h production mode has to be considered, the cross section for which is tiny in the Standard Model but tan.beta-enhanced in supersymmetry.	background 0.47	0.18	0.07	asserted 0.94
s5	We analyze the constrained NMSSM with non-universal Higgs sector parameters and identify regions of its parameter space where the lightest pseudoscalar with mass around 125 GeV and strongly enhanced gamma.gamma (up to 60%), b.b-bar and tau+.tau- rates in the b.b-bar.h mode can be obtained.	contribution 0.54	0.94	0.80	asserted 0.91

What kind of paper the classifier reports this is: theoretical result 0.72 · evidence from simulation or computation 0.82.

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full text
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C citations
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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We propose an experimental test of a scenario in the Next-to-Minimal Supersymmetric Standard Model in which both the lightest scalar and the lightest pseudoscalar Higgs bosons have masses around 125 GeV. The pseudoscalar can contribute significantly to the gamma.gamma rate at the LHC due to light Higgsino-like charginos in its effective one-loop coupling to two photons. Such charginos are obtained for small values of the mu_eff parameter which also results in enhanced b.b-bar and tau+.tau- rates compared to those expected for a Standard Model Higgs boson. This scenario should result in a clear discrepancy between the observed rates in these three decay channels and those in the WW and ZZ channels, since the pseudoscalar does not couple to the W and Z bosons. However, in the dominant gluon fusion production mode the pseudoscalar will stay hidden behind the SM-like scalar Higgs boson and in order for it to be observable the associated b.b-bar.h production mode has to be considered, the cross section for which is tiny in the Standard Model but tan.beta-enhanced in supersymmetry. We analyze the constrained NMSSM with non-universal Higgs sector parameters and identify regions of its parameter space where the lightest pseudoscalar with mass around 125 GeV and strongly enhanced gamma.gamma (up to 60%), b.b-bar and tau+.tau- rates in the b.b-bar.h mode can be obtained.

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References

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Discovery Prospects for NMSSM Higgs Bosons at the High-Energy Large Hadron Collider
hep-ph 2014-08 conditional novelty 5.0 of 10

In the NMSSM, a light singlet-like Higgs below 125 GeV plus heavy doublet Higgs bosons around 300 to 600 GeV should mostly be reachable at the 13 TeV LHC, either directly or through Higgs-to-Higgs cascade decays that ...
Dark matter and collider signatures of the MSSM
hep-ph 2013-06 conditional novelty 5.0 of 10

In a nine-parameter MSSM scan, neutralino dark matter consistent with muon g-2 and not yet excluded by LHC electroweak searches sits between 200 and 500 GeV, and the XENON100 bound weakens once a new pion-nucleon sigm...

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11 arXiv papers cite this in 13 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 12 sentences without a confident label

Cites it as background 1 paper

In [ref] it was noted that in the NMSSM the $A_1$ could in fact be degenerate in mass with the SM-like Higgs boson.

A light NMSSM pseudoscalar Higgs boson at the LHC redux · Introduction · 0.85

What it cites · 39 sentences without a confident label

Uses the method or tool of 3 papers

The numerical analysis was performed using the BayesFITS package which engages several external, publicly available tools: MultiNest [ref] for sampling of the CNMSSM-NUHM parameter space; v3.2.4 [ref] for computing SUSY mass spectrum, Higgs BRs and reduced couplings, as well as for a given NMSSM point; v3.3 [ref] for calculating , and .

MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics · Methodology and results · 1.00
The numerical analysis was performed using the BayesFITS package which engages several external, publicly available tools: MultiNest [ref] for sampling of the CNMSSM-NUHM parameter space; v3.2.4 [ref] for computing SUSY mass spectrum, Higgs BRs and reduced couplings, as well as for a given NMSSM point; v3.3 [ref] for calculating , and .

SuperIso Relic: A program for calculating relic density and flavor physics observables in Supersymmetry · Methodology and results · 1.00
DM observables such as the relic density and are calculated with v2.4.5 [ref] .

micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model · Methodology and results · 1.00

Uses data or values from 1 paper

For testing the compatibility of the regions of interest against the dark matter direct detection cross section, , we use the XENON100 90% CL exclusion limits [ref] .

Dark Matter Results from 225 Live Days of XENON100 Data · Methodology and results · 0.96

Cites as background 16 papers

Since its discovery at the LHC in July 2012 [ref] , the CMS and ATLAS collaborations have accumulated more data and updated their results on the Higgs boson.

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC · Introduction · 0.99
Since its discovery at the LHC in July 2012 [ref] , the CMS and ATLAS collaborations have accumulated more data and updated their results on the Higgs boson.

Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC · Introduction · 0.99
In the MSSM constrained at the grand unification theory (GUT) scale, referred to as the CMSSM [ref] , $h$ can attain a mass around the measured central value only if the SUSY-breaking scale, , is close to or larger than 1, while also satisfying other important phenomenological constraints.

Study of Constrained Minimal Supersymmetry · Introduction · 0.81

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