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Excess Higgs Production in Neutralino Decays
High Energy Physics - Phenomenology · Submitted 7 Aug 2012
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We also discuss the possibility that excess Higgs production in these SUSY decays can be responsible for enhancements of up to 50% over the SM prediction for the observed rate in the existing inclusive diphoton searches, a scenario which would likely by the end of the 8 TeV run be accompanied by excesses in the diphoton + lepton/MET and SUSY multi-lepton/b searches and a potential discovery in a diphoton + 2b search.
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The abstract, sentence by sentence
The ATLAS and CMS experiments have recently claimed discovery of a Higgs boson-like particle at ~5 sigma confidence and are beginning to test the Standard Model predictions for its production and decay. In a variety of supersymmetric models, a neutralino NLSP can decay dominantly to the Higgs and the LSP. In natural SUSY models, a light third generation squark decaying through this chain can lead to large excess Higgs production while evading existing BSM searches. Such models can be observed at the 8 TeV LHC in channels exploiting the rare diphoton decays of the Higgs produced in the cascade decay. Identifying a diphoton resonance in association with missing energy, a lepton, or b-tagged jets is a promising search strategy for discovery of these models, and would immediately signal new physics involving production of a Higgs boson. We also discuss the possibility that excess Higgs production in these SUSY decays can be responsible for enhancements of up to 50% over the SM prediction for the observed rate in the existing inclusive diphoton searches, a scenario which would likely by the end of the 8 TeV run be accompanied by excesses in the diphoton + lepton/MET and SUSY multi-lepton/b searches and a potential discovery in a diphoton + 2b search.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The ATLAS and CMS experiments have recently claimed discovery of a Higgs boson-like particle at ~5 sigma confidence and are beginning to test the Standard Model predictions for its production and decay. | background 1.00 | 0.04 | 0.03 | asserted 0.99 |
| s1 | In a variety of supersymmetric models, a neutralino NLSP can decay dominantly to the Higgs and the LSP. | background 0.87 | 0.06 | 0.07 | asserted 0.88 |
| s2 | In natural SUSY models, a light third generation squark decaying through this chain can lead to large excess Higgs production while evading existing BSM searches. | contribution 0.54 | 0.15 | 0.26 | asserted 0.57 |
| s3 | Such models can be observed at the 8 TeV LHC in channels exploiting the rare diphoton decays of the Higgs produced in the cascade decay. | method 0.62 | 0.16 | 0.12 | hedged possibility 0.60 |
| s4 | Identifying a diphoton resonance in association with missing energy, a lepton, or b-tagged jets is a promising search strategy for discovery of these models, and would immediately signal new physics involving production of a Higgs boson. | method 0.51 | 0.17 | 0.26 | asserted 0.50 |
| s5 | We also discuss the possibility that excess Higgs production in these SUSY decays can be responsible for enhancements of up to 50% over the SM prediction for the observed rate in the existing inclusive diphoton searches, a scenario which would likely by the end of the 8 TeV run be accompanied by excesses in the diphoton + lepton/MET and SUSY multi-lepton/b searches and a potential discovery in a diphoton + 2b search. | interpretation 0.67 | 0.31 | 0.51 | hedged possibility 0.97 |
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The paper
Original abstract
The ATLAS and CMS experiments have recently claimed discovery of a Higgs boson-like particle at ~5 sigma confidence and are beginning to test the Standard Model predictions for its production and decay. In a variety of supersymmetric models, a neutralino NLSP can decay dominantly to the Higgs and the LSP. In natural SUSY models, a light third generation squark decaying through this chain can lead to large excess Higgs production while evading existing BSM searches. Such models can be observed at the 8 TeV LHC in channels exploiting the rare diphoton decays of the Higgs produced in the cascade decay. Identifying a diphoton resonance in association with missing energy, a lepton, or b-tagged jets is a promising search strategy for discovery of these models, and would immediately signal new physics involving production of a Higgs boson. We also discuss the possibility that excess Higgs production in these SUSY decays can be responsible for enhancements of up to 50% over the SM prediction for the observed rate in the existing inclusive diphoton searches, a scenario which would likely by the end of the 8 TeV run be accompanied by excesses in the diphoton + lepton/MET and SUSY multi-lepton/b searches and a potential discovery in a diphoton + 2b search.
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References
How the literature uses it
21 arXiv papers cite this in 23 sentences
Papers citing it · 14 sentences without a confident label
Compares with it 1 paper
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This situation is similar to a supersymmetric scenario with μ≫M_1, M_2, where the NLSP neutralino can decay to Higgs and the LSP, and the chargino decays to $W$ and the LSP [ref] .
Higgs Production Amidst the LHC Detector · Constraints and LHC Discovery Prospects · 0.80
Cites it as background 8 papers
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There have been several phenomenological studies of $h$ production in neutralino decays in various constrained supersymmetric models [ref] , including some detailed assessments of the LHC potential [ref] .
Higgs Production in Neutralino Decays in the MSSM - The LHC and a Future e+e- Collider · Introduction · 0.88
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BSM production of the Higgs has seen previous study mainly in the specific contexts of weak-scale supersymmetry (e.g. [ref] ) and other two-Higgs-doublet models (e.g. [ref] ), often coming along with large MET or a high multiplicity of final states from cascade decays (see also [ref] for earlier proposals to discover the Higgs with BSM production modes).
H Marks the Spot: Searching for Exotic Production of Higgs + X to Map Out New Physics · Introduction · 0.98
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The electroweakinos searches and related topics in the context of the LHC have been analysed by various phenomenology group in Ref. [ref] .
Impact of LHC data on muon $g-2$ solutions in vector-like extension of the Constrained MSSM · Introduction · 0.99
What it cites · 74 sentences without a confident label
Uses the method or tool of 1 paper
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We use MadGraph 5 [ref] to generate SUSY production events, Pythia 6.4 [ref] to decay particles, perform parton showering and hadronization and produce initial and final state radiation, and PGS4 [ref] to simulate object reconstruction in detectors (we use the Pythia-PGS package to interface these tools).
MadGraph 5 : Going Beyond · Constraints from SUSY searches · 1.00
Uses data or values from 3 papers
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Both ATLAS and CMS have presented combined searches at 7 and 8 TeV for inclusive Higgs to diphoton final states, finding respectively best fit values of $σ/σ_ = 1.9±0.5$ and $σ/σ_ = 1.56±0.43$ for a Higgs mass near $125$ GeV [ref] .
Search for the Standard Model Higgs boson in the diphoton decay channel with 4.9 fb-1 of pp collisions at sqrt(s) = 7 TeV with ATLAS · Inclusive diphoton rates · 0.95
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Both ATLAS and CMS have presented combined searches at 7 and 8 TeV for inclusive Higgs to diphoton final states, finding respectively best fit values of $σ/σ_ = 1.9±0.5$ and $σ/σ_ = 1.56±0.43$ for a Higgs mass near $125$ GeV [ref] .
Search for the standard model Higgs boson decaying into two photons in pp collisions at sqrt(s)=7 TeV · Inclusive diphoton rates · 0.95
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We take SM Higgs boson cross sections and branching ratios from [ref] .
Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables · Constraints from SUSY searches · 1.00
Compares with 1 paper
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[ref] , likely due to a more detailed modeling of the CMS lepton efficiencies in their study.
Multi-Lepton Signals of the Higgs Boson · Constraints on the simplified model from SUSY searches · 0.96
Cites as background 43 papers
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The ATLAS and CMS experiments at the Large Hadron Collider (LHC) have recently reported discovery of a new particle consistent with the Higgs boson of the Standard Model [ref] .
Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC · Introduction · 0.83
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Conversely, the discovery sensitivity for BSM physics through Higgs production has been studied in the context of the MSSM with a bino LSP [ref] , a gravitino LSP [ref] , and additional feebly coupled LSPs [ref] , as well as in the context of vector-like heavy quarks [ref] .
Higgs signal in Chargino-Neutralino production at the LHC · Introduction · 0.91
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Conversely, the discovery sensitivity for BSM physics through Higgs production has been studied in the context of the MSSM with a bino LSP [ref] , a gravitino LSP [ref] , and additional feebly coupled LSPs [ref] , as well as in the context of vector-like heavy quarks [ref] .
Modified Signals for Supersymmetry in the NMSSM with a Singlino-like LSP · Introduction · 0.91
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