Domains
Submitted Date
Subjects
Authors
1. chinaXiv:201612.00476 [pdf]
Experimental constraints on nMSSM and implications on its phenomenology
Cao,J; Logan,HE; Yang,JMSubjects:
| We examine various direct and indirect experimental constraints on the nearly minimal supersymmetric standard model (nMSSM) and obtain the following observations: (i) The combination of current experiments stringently constrains the parameter space, setti |
submitted time 2016-12-28 Hits2280， Downloads1336， Comment 0
2. chinaXiv:201612.00468 [pdf]
Cao,J; Wu,L; Yang,JMSubjects:
| We examine the lepton flavor-changing processes in R -parity violating MSSM. First, we update the constraints on the relevant R -violating couplings by using the latest data on the rare decays ? i → ? j γ . We find that the updated constraints are much st |
submitted time 2016-12-28 Hits2223， Downloads1306， Comment 0
3. chinaXiv:201612.00467 [pdf]
Cao,J; Wan,P; Wu,L; Yang,JMSubjects:
| We examine various direct and indirect constraints on the lepton-specific two-Higgs doublet model and scrutinize the property of the Higgs bosons in the allowed parameter space. These constraints come from the precision electroweak data, the direct search |
submitted time 2016-12-28 Hits2303， Downloads1364， Comment 0
4. chinaXiv:201612.00440 [pdf]
A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM
Cao,J; Heng,Z; Yang,JM; Zhang,Y; Zhu,JSubjects:
| Motivated by the recent LHC hints of a Higgs boson around 125 GeV, we assume a SM-like Higgs with the mass 123-127 GeV and study its implication in low energy SUSY by comparing the MSSM and NMSSM. We consider various experimental constraints at 2-sigma le |
5. chinaXiv:201612.00437 [pdf]
A Heavy SM-like Higgs and a Light Stop from Yukawa-Deflected Gauge Mediation
Kang,Z; Li,T; Liu,T; Tong,C; Yang,JMSubjects:
| To obtain a SM-like Higgs boson around 125 GeV in the Minimal Supersymmetric Standard Model with minimal gauge mediation of supersymmetry breaking (GMSB), a heavy stop at multi-TeV level is needed and incurs severe fine-tuning, which can be ameliorated in |
6. chinaXiv:201612.00424 [pdf]
Higgs pair production with SUSY QCD correction: revisited under current experimental constraints
Han,C; Ji,X; Wu,L; Wu,P; Yang,JMSubjects:
| We consider the current experimental constraints on the parameter space of the MSSM and NMSSM. Then in the allowed parameter space we examine the Higgs pair production at the 14 TeV LHC via bb?→hhbb?→hhb\bar{b}\to hh (hhh is the 125 GeV SM-like Higg boson |
7. chinaXiv:201612.00421 [pdf]
A light Higgs scalar in the NMSSM confronted with the latest LHC Higgs data
Cao,J; Ding,F; Han,C; Yang,JM; Zhu,JSubjects:
| In the Next-to-Minimal Supersymemtric Standard Model (NMSSM), one of the neutral Higgs scalars (CP-even or CP-odd) may be lighter than half of the SM-like Higgs boson. In this case, the SM-like Higgs boson h can decay into such a light scalar pair and con |
8. chinaXiv:201612.00412 [pdf]
New approach for detecting a compressed bino/wino at the LHC
Han,C; Wu,L; Yang,JM; Zhang,M; Zhang,YSubjects:
| In some supersymmetric models like split supersymmetry or models with non-universal gaugino mass, bino (LSP) and winos (NLSP) may have rather small mass splitting in order to provide the correct dark matter relic density through bino/wino co-annihilation. Such a scenario with the compressed bino/wino is difficult to explore at the LHC. In this work we propose to probe this scenario from pp → jχ ?02χ ?±1 followed by χ ?02 → γχ ?01 and χ ?±1 → W?χ ?01 → l±νχ ?01 (this method is also applicable to the compressed bino/higgsino scenario). Through a detailed Monte Carlo simulation for both the signal and the backgrounds, we find that for a mass splitting ?M ? 5 ? 15 GeV between bino (LSP) and wino (NLSP), the 14 TeV LHC with luminosity of 500fb?1 can probe the wino up to 150 GeV (the sensitivity can reach 5σ for ?M = 5 GeV and 2σ for ?M = 15 GeV). We also investigate the dark matter detection sensitivities for this scenario and find that the planned XENON-1T(2017) cannot fully cover the parameter space with wino below 150 GeV allowed by relic density and the LUX limits. |
9. chinaXiv:201612.00406 [pdf]
ATLAS Z-peaked excess in the MSSM with a light sbottom or stop
Kobakhidze,A; Liu,N; Wu,L; Yang,JMSubjects:
| We attempt to explain the recent ATLAS 3σ excess of dilepton events with an invariant mass near Z peak through the gluino-mediated sbottom production in a simplified scenario inspired by the minimal supersymmetric Standard Model. The additional Z bosons c |
10. chinaXiv:201612.00359 [pdf]
Anomaly of Zb anti-b coupling revisited in MSSM and NMSSM
Cao,J; Yang,JMSubjects:
| The Zbb coupling determined from the Z-pole measurements at LEP/SLD shows an about 3-sigma deviation from the SM prediction, which would signal the presence of new physics in association with the Zbb coupling. In this work we give a comprehensive study fo |
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