The neutralino sector of the next-to-minimal supersymmetric Standard Model

Choi, Seong Youl; Miller, D. J.; Zerwas, P.M.

doi:10.1016/j.nuclphysb.2005.01.006

Cited by 51 publications

(59 citation statements)

References 39 publications

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“…With the additional singlet Higgs field, there are one more CP-even and one more CP-odd Higgs bosons, and one more neutralino other than those in the MSSM. The Higgs phenomenology is much richer [2,6,7,8], and so does the neutralinos [9,10,11]. One particular feature of the NMSSM is the allowable light pseudoscalar boson A 1 , which is consistent with existing data.…”

Section: Introductionsupporting

confidence: 76%

Associated production of a light pseudoscalar Higgs boson with a chargino pair in the NMSSM

Arhrib¹,

Cheung

Hou

et al. 2007

J. High Energy Phys.

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In the next-to-minimal supersymmetric standard model (NMSSM), the unique λSH u H d in the superpotential gives rise to a coupling involving the lighter pseudoscalar Higgs boson and a pair of charged or neutral Higgsinos, even in the limit of zero mixing between the two pseudoscalar Higgs bosons. We study the associated production of a very light pseudoscalar Higgs boson with a pair of charginos. The novel signature involves a pair of charged leptons from chargino decays and a pair of photons from the pseudoscalar Higgs boson decay, plus large missing energy at the LHC and ILC. The signal may help us to distinguish the NMSSM from MSSM, provided that the experiment can resolve the two photons from the decay of the pseudoscalar Higgs boson.

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Section: Introductionsupporting

confidence: 76%

Associated production of a light pseudoscalar Higgs boson with a chargino pair in the NMSSM

Arhrib¹,

Cheung

Hou

et al. 2007

J. High Energy Phys.

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“…The fermionic component of the singlet superfieldŜ in equation (2.1) (the 'singlino', S) could mix with the gauginos and the higgsinos of the MSSM. A singlino-dominated neutralino could turn out to be the lightest supersymmetric particle (LSP) and may crucially affect the cascade decays of the heavier SUSY excitations [14,[21][22][23][24][25][26][27][28]. We would further assume that R-parity is conserved and hence the LSP (χ 0 1 ) is stable.…”

Section: The Neutralino Sector Of the Nmssmmentioning

confidence: 99%

Two light stops in the NMSSM and the LHC

Beuria

Chatterjee

Datta

et al. 2015

J. High Energ. Phys.

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Abstract:We study the viability of having two relatively light top squarks ('stops') in the framework of the Next-to-Minimal Supersymmetric Standard Model (NMSSM). Such light stops render the NMSSM rather 'natural'. These are shown to be allowed by the relevant direct searches at the Large Hadron Collider (LHC) and to be compatible with the latest LHC results on the Higgs sector, other low energy electroweak constraints and recent constraints from the dark matter (DM) sector. We propose dedicated searches for such light stops at the LHC within a 'simplified' scenario that may have a bino-like or a singlino-like neutralino LSP as the DM candidate and point out various final states carrying the imprint of their collective presence. Under certain circumstances, in such a scenario, presence of two light stops may give rise to final states which are not so typical in their search. Thorough studies at the detector level reveal the status of such a scenario after the 8 TeV run of the LHC and shed light on the prospects of its 13 and 14 TeV runs. In favorable regions of the NMSSM parameter space, with low-lying spectra, signals with significance 5σ are possible with a few tens to a few hundreds of fb −1 of integrated luminosity in diverse final states.

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“…The impact of these NMSSM specific features on sparticle production and on cascade decays has already been addressed: sparticle decays into singlino-like neutralinos have been studied in [16][17][18][19][20][21], sparticle decays into neutralinos in [22], decays of stops, sbottoms and staus in [23], the associated production of a light CP-odd Higgs boson with a chargino pair in [24], neutralino decays into light Higgs bosons in [25], neutralino decays into soft leptons in [26], and neutralino and chargino decays into many leptons in [27].…”

Section: Introductionmentioning

confidence: 99%

NMSDECAY: A Fortran code for supersymmetric particle decays in the Next-to-Minimal Supersymmetric Standard Model

Das

Ellwanger

Teixeira

2012

Computer Physics Communications

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The code NMSDECAY allows to compute widths and branching ratios of sparticle decays in the Next-to-Minimal Supersymmetric Standard Model. It is based on a generalization of SDECAY, to include the extended Higgs and neutralino sectors of the NMSSM. Slepton 3-body decays, possibly relevant in the case of a singlino-like lightest supersymmetric particle, have been added. NMSDECAY will be part of the NMSSMTools package, which computes Higgs, sparticle masses and Higgs decays in the NMSSM.

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The neutralino sector of the next-to-minimal supersymmetric Standard Model

Cited by 51 publications

References 39 publications

Associated production of a light pseudoscalar Higgs boson with a chargino pair in the NMSSM

Associated production of a light pseudoscalar Higgs boson with a chargino pair in the NMSSM

Two light stops in the NMSSM and the LHC

NMSDECAY: A Fortran code for supersymmetric particle decays in the Next-to-Minimal Supersymmetric Standard Model

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