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Within the Minimal Supersymmetric Standard Model (MSSM) the production and decay of superpartners can give rise to backgrounds for Higgs boson searches. Here MSSM background processes to the vector boson fusion channel with the Higgs boson…

高能物理 - 唯象学 · 物理学 2013-09-26 Bastian Feigl , Heidi Rzehak , Dieter Zeppenfeld

We study the constraints of the CP violation in the muon $g-2$ preferred region of the minimal supersymmetric standard model assuming a universal slepton masses within first two generations. We present two particular scenarios where the…

高能物理 - 唯象学 · 物理学 2021-04-08 Chengcheng Han

We show that in a two Higgs doublet model type-II extended by vectorlike leptons the contributions from heavy neutral and charged Higgs bosons to the anomalous magnetic moment of the muon simultaneously feature chiral enhancement from…

高能物理 - 唯象学 · 物理学 2021-05-19 Radovan Dermisek , Keith Hermanek , Navin McGinnis

Under the minimal SUSY standard model (MSSM), the discrepancy in the muon g-2 suggests the SUSY particles are of order 100 GeV, which is also supported by discussions on the little hierarchy problem. However, the LHC experiments have found…

高能物理 - 唯象学 · 物理学 2013-05-06 Sho Iwamoto

Flavor changing neutral current processes in B and K decays in the supergravity model are revisited taking into account the recent progress of Higgs boson search experiments at LEP. Possible deviations of B^0--$\bar{B}^0$ mixing, the CP…

高能物理 - 唯象学 · 物理学 2007-05-23 Toru. Goto , Yasuhiro Okada , Yasuhiro Shimizu

The recent Fermilab measurement of the muon anomalous magnetic moment yields $4.2 \sigma$ deviations from the SM prediction when combined with the BNL E821 experiment results. In the Type-X two Higgs doublet model, we study the consequence…

高能物理 - 唯象学 · 物理学 2021-11-24 Adil Jueid , Jinheung Kim , Soojin Lee , Jeonghyeon Song

A search for supersymmetry (SUSY) is presented where at least one Higgs boson is produced and decays to two photons in the decay chains of pair-produced SUSY particles. Two analysis strategies are pursued: one focused on strong SUSY…

高能物理 - 实验 · 物理学 2019-12-11 CMS Collaboration

To escape the current LHC supersymmetry (SUSY) search constraints while preserve the naturalness condition, we propose the heavy Lightest Supersymmetric Particle (LSP) SUSY. According to the different dependence on the LSP mass, we…

高能物理 - 唯象学 · 物理学 2015-05-11 Taoli Cheng , Jinmian Li , Tianjun Li

We calculate contributions to the anomalous magnetic moment of the muon from heavy neutral and charged Higgs bosons and new leptons in two Higgs doublet models extended by vectorlike leptons. We present detailed predictions of two models…

高能物理 - 唯象学 · 物理学 2021-09-29 Radovan Dermisek , Keith Hermanek , Navin McGinnis

We observe that in SUSY models with non-universal GUT scale gaugino mass parameters, raising the GUT scale SU(2) gaugino mass |M_2| from its unified value results in a smaller value of -m_{H_u}^2 at the weak scale. By the electroweak…

高能物理 - 唯象学 · 物理学 2008-11-26 Howard Baer , Azar Mustafayev , Heaya Summy , Xerxes Tata

Gauge coupling unification and the success of TeV-scale weakly interacting dark matter are usually taken as evidence of low energy supersymmetry (SUSY). However, if we assume that the tuning of the higgs can be explained in some unnatural…

高能物理 - 唯象学 · 物理学 2009-11-11 Rakhi Mahbubani , Leonardo Senatore

The supersymmetric contribution to the muon g-2 is studied in light of the finalization of the LEP electroweak precision data. The recent precise measurement of the muon g-2 of E821 experiment is explained well by the relatively light…

高能物理 - 唯象学 · 物理学 2007-05-23 Gi-Chol Cho

The recent measurement of the muon $g - 2$ anomaly continues to defy a Standard Model explanation, but can be accommodated within the framework of two Higgs doublet models. If one further includes extra fermion content in the form of a…

高能物理 - 唯象学 · 物理学 2021-09-29 P. M. Ferreira , B. L. Gonçalves , F. R. Joaquim , Marc Sher

We proposed to introduce general messenger-matter interactions in the deflected anomaly mediated SUSY breaking scenario to explain the $g_\mu-2$ anomaly. Scenarios with complete or incomplete GUT multiplet messengers are discussed,…

高能物理 - 唯象学 · 物理学 2017-10-25 Fei Wang , Wenyu Wang , Jin Min Yang

We revisit the issue of considering stochasticity of Grassmannian coordinates in N=1 superspace, which was analyzed previously by Kobakhidze {\it et al}. In this stochastic supersymmetry(SUSY) framework, the soft SUSY breaking terms of the…

高能物理 - 唯象学 · 物理学 2013-03-14 Manimala Chakraborti , Utpal Chattopadhyay , Rohini M. Godbole

We study the interplay between a soft muon Yukawa coupling generated radiatively with the trilinear A-terms of the minimal supersymmetric standard model (MSSM) and the anomalous magnetic moment of the muon. In the absence of a tree-level…

高能物理 - 唯象学 · 物理学 2011-03-23 Andreas Crivellin , Jennifer Girrbach , Ulrich Nierste

Motivated by the long-standing discrepancy between the Standard Model prediction and the experimental measurement of the muon magnetic dipole moment, we have recently proposed to interpret this muon $g-2$ anomaly in terms of the loop effect…

高能物理 - 唯象学 · 物理学 2022-08-03 Da Huang , Chao-Qiang Geng , Jiajun Wu

The very precise measurement of the anomalous magnetic moment of the muon, recently released by the Muon g-2 experiment at Fermilab, can serve to set stringent constraints on new particles. If the observed 4$\sigma$ discrepancy from the…

高能物理 - 唯象学 · 物理学 2021-12-24 J. C. Criado , A. Djouadi , N. Koivunen , K. Müürsepp , M. Raidal , H. Veermäe

We present new upper limits on the light Higgs boson mass mh in supersymmetric models. We consider two gravity-mediated models (with and without universal scalar masses) and two gauge-mediated models (with a 5+5 or 10+10 messenger sector).…

高能物理 - 唯象学 · 物理学 2009-10-09 Konstantin T. Matchev , Damien M. Pierce

Recently the ATLAS experiment announced a 3 $\sigma$ excess at the Z-peak consisting of 29 pairs of leptons together with two or more jets, $E_T^{\rm miss}> 225$ GeV and $H_T \geq 600$ GeV, to be compared with $10.6 \pm 3.2$ expected lepton…

高能物理 - 唯象学 · 物理学 2016-03-23 G. Barenboim , J. Bernabeu , V. A. Mitsou , E. Romero , O. Vives