Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: 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
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: Extensions of the Standard Model often predict new chiral interactions for top quark, which will contribute to top quark spin correlation and polarization in tt?tt?t\bar{t} production at the LHC. In this work, under the constraints from the current Tevatr
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: In order to explain the Tevatron anomaly of the top quark forward-backward asymmetry AtFBAFBtA_{FB}^t in the left-right twin Higgs model, we choose to give up the lightest neutral particle of h^h^\hat{h} field as a stable dark matter candidate. Then a new
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: 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
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: In the minimal supersymmetric standard model the R-parity violating interactions can trigger various exotic three-body decays for the top quark, which may be accessible at the LHC. In this work we examine the R-violating decays t-> c X_1 X_2, which includ
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: 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
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: The top quark forward-backward asymmetry A_{FB}^{t} measured at the Tevatron is above the Standard Model prediction by more than 2-sigma deviation, which might be a harbinger for new physics. In this work we examine the new physics contribution to A_{FB}^
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: The anomaly of the top quark forward-backward asymmetry AtFBAFBtA^t_{FB} observed at the Tevatron can be explained by the t-channel exchange of a neutral gauge boson (Z') which has sizable flavor changing coupling for top and up quarks. This gauge boson c
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: In a topcolor-assisted technicolor model (TC2) with large FCNC top quark couplings, we study its correlated contributions to the top quark forward–backward asymmetry ( AFB ) at the Tevatron, the top charge asymmetry ( AC ) and the triple-top production at
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: Inspired by the recent LHC Higgs data and null search results of supersymmetry (SUSY), we scan the parameter space of the Minimal Supersymmetric Standard Model (MSSM) with relatively heavy sparticles (1-3 TeV). Then in the parameter space allowed by curre
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: In light of recent remarkable progress in Higgs search at the LHC, we study the rare decay process h→Zγh→Zγh \to Z\gamma and show its correlation with the decay h→γγh→γγh \to \gamma\gamma in low energy SUSY models such as CMSSM, MSSM, NMSSM and nMSSM. Und
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: 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
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: 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
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: We examine the Higgs triple coupling in MSSM and NMSSM under current constraints, which include the LHC measurements, Higgs data, B physics, electroweak precision observables, relic density and so on. The ratio λMSSMhhh/λSMhhhλhhhMSSM/λhhhSM\lambda^{\rm M
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: Light top squarks (stops) and light higgsinos are the key features of natural supersymmetry (SUSY), where the higgsinos χ?1± and χ?1,20 are nearly degenerate and act as the missing transverse energy (ET) at the LHC. Besides the pair production via strong
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: We propose to interpret the 750 GeV diphoton excess in deflected anomaly mediation supersymmetry breaking scenarios, which can naturally predict couplings between a singlet field and vector-like messengers. The CP-even scalar component ( S ) of the single
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: In the minimal supersymmetric model the R-parity violating top quark interactions, which are so far weakly constrained, can induce various flavor-changing neutral-current (FCNC) productions for the top quark at the Large Hadron Collider (LHC). In this wor
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: In the minimal supersymmetric standard model the R-parity violating interactions can trigger various exotic three-body decays for the top quark, which may be accessible at the LHC. In this work we examine the R-violating decays t-> c X_1 X_2, which includ
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: 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
Peer Review Status:Awaiting Review
Subjects: Physics Subjects: Physics >> The Physics of Elementary Particles and Fields submitted time 2016-12-28
Abstract: As a top quark factory, the LHC can test the new physics models used to explain the top quark forward-backward asymmetry A^t_FB measured at the Tevatron. In this work we perform a comparative study for two such models: the W'-model and the color triplet d
Peer Review Status:Awaiting Review