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1. 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,JM

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

submitted time 2016-12-28 Hits1641Downloads927 Comment 0

2. chinaXiv:201612.00422 [pdf]

Current experimental bounds on stop mass in natural SUSY

Han,C; Hikasa,K; Wu,L; Yang,JM; Zhang,Y

Motivated by the recent progress of direct search for the productions of stop pair and sbottom pair at the LHC, we examine the constraints of the search results on the stop (t ? ) mass in natural SUSY. We first scan the parameter space of natural SUSY in the framework of MSSM, considering the constraints from the Higgs mass, B-physics and electroweak precision measurements. Then in the allowed parameter space we perform a Monte Carlo simulation for stop pair production followed by t ? → tχ ?0 or t ? → bχ ?+ and sbottom pair production followed by ?b → bχ ?0 or ?b → tχ ??. 1111 1111 Using the combined results of ATLAS with 20.1 fb?1 from the search of l + jets + E/ T , hadronic tt ?+E/T and 2b+E/T, we find that a stop lighter than 600 GeV can be excluded at 95% CL in this scenario.

submitted time 2016-12-28 Hits1731Downloads961 Comment 0

3. chinaXiv:201612.00419 [pdf]

Probing Light Higgsinos in Natural SUSY from Monojet Signals at the LHC

Han,C; Kobakhidze,A; Liu,N; Saavedra,A; Wu,L; Yang,JM

We investigate a strategy to search for light, nearly degenerate higgsinos within the natural MSSM at the LHC. We demonstrate that the higgsino mass range μμ\mu in 100?150100?150100-150 GeV, which is preferred by the naturalness, can be probed at 2σ2σ2\si

submitted time 2016-12-28 Hits1595Downloads925 Comment 0

4. chinaXiv:201612.00418 [pdf]

A light SUSY dark matter after CDMS-II, LUX and LHC Higgs data

Cao,J; Han,C; Wu,L; Wu,P; Yang,JM

In SUSY, a light dark matter is usually accompanied by light scalars to achieve the correct relic density, which opens new decay channels of the SM like Higgs boson. Under current experimental constraints including the latest LHC Higgs data and the dark m

submitted time 2016-12-28 Hits1706Downloads972 Comment 0

5. chinaXiv:201612.00417 [pdf]

Full one-loop electroweak corrections to e+e?→ZHγe+e?→ZHγe^+e^- \to ZH\gamma at a Higgs factory

Liu,N; Ren,J; Wu,L; Wu,P; Yang,JM

Motivated by the future precision test of the Higgs boson at an e+e?e+e?e^+e^- Higgs factory, we calculate the production e+e?→ZHγe+e?→ZHγe^+e^- \to ZH\gamma in the Standard Model with complete next-to-leading order electroweak corrections. We find that f

submitted time 2016-12-28 Hits1534Downloads874 Comment 0

6. chinaXiv:201612.00415 [pdf]

SUSY induced top quark FCNC decay t→cht→cht \rightarrow { ch} after Run I of LHC

Cao,J; Han,C; Wu,L; Yang,JM; Zhang,M

In light of the Higgs discovery and the nonobservation of sparticles at the LHC, we revisit the supersymmetric theory (SUSY) induced top quark flavor-changing decay into the Higgs boson. We perform a scan over the relevant SUSY parameter space by consider

submitted time 2016-12-28 Hits1676Downloads954 Comment 0

7. chinaXiv:201612.00412 [pdf]

New approach for detecting a compressed bino/wino at the LHC

Han,C; Wu,L; Yang,JM; Zhang,M; Zhang,Y

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.

submitted time 2016-12-28 Hits1647Downloads922 Comment 0

8. chinaXiv:201612.00411 [pdf]

SUSY effects in Higgs productions at high energy e+e?e+e?e^+e^- colliders

Cao,J; Han,C; Ren,J; Wu,L; Yang,JM; Zhang,Y

Considering the constraints from collider experiments and dark matter detection, we investigate the SUSY effects in the Higgs production channels e(+) e(?) → Zh at an e(+) e(?) collider with a center-of-mass energy above 240 GeV and γγ → h → bb? at a phot

submitted time 2016-12-28 Hits1413Downloads827 Comment 0

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,JM

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

submitted time 2016-12-28 Hits1461Downloads837 Comment 0

10. chinaXiv:201612.00405 [pdf]

Higgs self-coupling in the MSSM and NMSSM after the LHC Run 1

Wu,L; Yang,JM; Yuan,C; Zhang,M

Measuring the Higgs self-coupling is one of the crucial physics goals at the LHC Run-2 and other future colliders. In this work, we attempt to figure out the size of SUSY effects on the trilinear self-coupling of the 125 GeV Higgs boson in the MSSM and NM

submitted time 2016-12-28 Hits1340Downloads818 Comment 0

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