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1. chinaXiv:201612.00428 [pdf]

Pair Production of a 125 GeV Higgs Boson in MSSM and NMSSM at the LHC

Cao,J; Heng,Z; Shang,L; Wan,P; Yang,JM
Subjects:

In light of the recent LHC Higgs search data, we investigate the pair production of a SM-like Higgs boson around 125GeV in the MSSM and NMSSM. We first scan the parameter space of each model by considering various experimental constraints, and then calcul

submitted time 2016-12-28 Hits885Downloads472 Comment 0

2. chinaXiv:201612.00410 [pdf]

Supersymmetry explanation of the Fermi Galactic Center excess and its test at LHC run II

Cao,J; Shang,L; Wu,P; Yang,JM; Zhang,Y
Subjects:

We explore the explanation of the Fermi Galactic Center excess (GCE) in the next-to-minimal supersymmetric Standard Model. We systematically consider various experimental constraints including the dark matter (DM) relic density, DM direct detection result

submitted time 2016-12-28 Hits652Downloads373 Comment 0

3. chinaXiv:201612.00404 [pdf]

Explanation of the ATLAS Z-Peaked Excess in the NMSSM

Cao,J; Shang,L; Yang,JM; Zhang,Y
Subjects:

Recently the ATLAS collaboration reported a 3σ excess in the leptonic-Z + jets + EmissTTmiss_{T}^{miss} channel. This may be interpreted in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) by gluino pair production with the decay chain g~→qq??χ~0

submitted time 2016-12-28 Hits720Downloads381 Comment 0

4. chinaXiv:201612.00400 [pdf]

Interpreting the galactic center gamma-ray excess in the NMSSM

Cao,J; Shang,L; Wu,P; Yang,JM; Zhang,Y
Subjects:

In the Next-to-Minimal Supersymmetric Standard Model (NMSSM), all singlet-dominated particles including one neutralino, one CP-odd Higgs boson and one CP-even Higgs boson can be simultaneously lighter than about 100 GeV. Consequently, dark matter (DM) in the NMSSM can annihilate into multiple final states to explain the galactic center gamma-ray excess (GCE). In this work we take into account the foreground and background uncertainties for the GCE and investigate these explanations. We carry out a sophisticated scan over the NMSSM parameter space by considering various experi- mental constraints such as the Higgs data, B-physics observables, DM relic density, LUX experiment and the dSphs constraints. Then for each surviving parameter point we per- form a fit to the GCE spectrum by using the correlation matrix that incorporates both the statistical and systematic uncertainties of the measured excess. After examining the properties of the obtained GCE solutions, we conclude that the GCE can be well explained by the pure annihilations χ ?01χ ?01 → b ?b and χ ?01χ ?01 → A1Hi with A1 being the lighter singlet- dominated CP-odd Higgs boson and Hi denoting the singlet-dominated CP-even Higgs boson or SM-like Higgs boson, and it can also be explained by the mixed annihilation χ ?01χ ?01 → W+W?,A1H1. Among these annihilation channels, χ ?01χ ?01 → A1Hi can provide the best interpretation with the corresponding p-value reaching 0.55. We also discuss to what extent the future DM direct detection experiments can explore the GCE solutions and conclude that the XENON-1T experiment is very promising in testing nearly all the solutions.

submitted time 2016-12-28 Hits807Downloads454 Comment 0

5. chinaXiv:201612.00399 [pdf]

Explanation of the ATLAS Z-peaked excess by squark pair production in the NMSSM

Cao,J; Shang,L; Yang,JM; Zhang,Y
Subjects:

The ATLAS collaboration recently reported a 3σ excess in the leptonic-Z + jets + EmissTTmiss_{T}^{miss} channel. We intend to interpret this excess by squark pair production in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The decay chain we

submitted time 2016-12-28 Hits567Downloads294 Comment 0

6. chinaXiv:201612.00394 [pdf]

Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar–Wise model

Cao,J; Han,C; Shang,L; Su,W; Yang,JM; Zhang,Y
Subjects:

The evidence of a new scalar particle X from the 750 GeV diphoton excess, and the absence of any other signal of new physics at the LHC so far suggest the existence of new colored scalars, which may be moderately light and thus can induce sizable Xgg and

submitted time 2016-12-28 Hits542Downloads287 Comment 0

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