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We study the new physics (NP) implications of the recently reported 3.2 sigma Standard Model (SM) deviation in the like-sign dimuon asymmetry at the Tevatron. Assuming that new physics only enters the B(s) mixing amplitude we explore the…

高能物理 - 唯象学 · 物理学 2011-02-09 J. K. Parry

Higgs boson mass measurement at $\sim 125$ GeV points to a high scale for SUSY specifically the scalar masses. If all the scalars are heavy, supersymmetric contribution to the leptonic $g-2$ moments will be significantly reduced. On the…

高能物理 - 唯象学 · 物理学 2016-08-03 Amin Aboubrahim , Tarek Ibrahim , Pran Nath

The SUSY contributions $\Delta a_\mu$ to muon $g-2$ anomaly can not even reach $3\sigma$ in ordinary gauge mediated SUSY breaking (GMSB) scenarios because of the strong correlations between the colored sparticle masses and the uncolored EW…

高能物理 - 唯象学 · 物理学 2023-03-30 Xiao Kang Du , Zhuang Li , Fei Wang , Ying Kai Zhang

The longstanding muon g-2 anomaly may indicate the existence of new particles that couple to muons, which could either be light (< GeV) and weakly coupled, or heavy (>> 100 GeV) with large couplings. If light new states are responsible,…

高能物理 - 唯象学 · 物理学 2021-04-28 Rodolfo Capdevilla , David Curtin , Yonatan Kahn , Gordan Krnjaic

We discuss constraints on SUSY models with non-unified gaugino masses and R_P conservation. We derive a lower bound on the neutralino mass combining the direct limits from LEP, the indirect limits from gmuon, bsgamma, Bsmumu and the relic…

高能物理 - 唯象学 · 物理学 2010-02-03 G. Belanger , F. Boudjema , A. Cottrant , A. Pukhov , S. Rosier-Lees

A review of the experimental and theoretical determinations of the anomalous magnetic moment of the muon is given. The anomaly is defined by a=(g-2)/2, where the Land\'e g-factor is the proportionality constant that relates the spin to the…

高能物理 - 唯象学 · 物理学 2008-11-26 James P. Miller , Eduardo de Rafael , B. Lee Roberts

Recent developments constraining the SUSY parameter space are reviewed within the framework of SUGRA GUT models. The WMAP data is seen to reduce the error in the density of cold dark matter by about a factor of four, implying that the…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Arnowitt , B. Dutta , B. Hu

The Atlas and CMS collaborations have both reported an excess of events in the WW\star \rightarrow \ell+\ell- + ETmiss search channel, which could be the first evidence for the Higgs boson. In the context of the MSSM, the lightest SUSY…

高能物理 - 唯象学 · 物理学 2013-05-29 Howard Baer , Vernon Barger , Peisi Huang , Azar Mustafayev

Recently the ATLAS and CMS collaborations presented preliminary results of Standard Model Higgs searches and reported excesses of events for a Higgs boson at 124-126 GeV. Such a Higgs mass can be naturally realized, simultaneously…

高能物理 - 唯象学 · 物理学 2013-05-30 Motoi Endo , Koichi Hamaguchi , Sho Iwamoto , Norimi Yokozaki

The most recent CMS results from a search for supersymmetry (SUSY) with a compressed mass spectrum in leptonic final states will be presented. The search is targeting signatures with missing transverse momentum and two or three low-momentum…

高能物理 - 实验 · 物理学 2021-11-30 Ioanna Papavergou , Emmanouil Vourliotis

We have explored the possibilities of scenarios with heavy gluinos and light stops in supersymmetric (SUSY) standard models with extra vector-like multiplets. If we assume the hierarchical structure for soft masses of the minimal…

高能物理 - 唯象学 · 物理学 2017-04-06 Junji Hisano , Wataru Kuramoto , Takumi Kuwahara

In this work, we study the long-standing experimental anomaly in muon $(g-2)$ and also recent anomalous excess in $K_L\to \pi^0+\nu\bar\nu$ at the J-PARC KOTO experiment with sgoldstino. After supersymmetry breaking, the interactions…

高能物理 - 唯象学 · 物理学 2020-10-30 Xuewen Liu , Ying Li , Tianjun Li , Bin Zhu

We consider a SUSY breaking scenario without the Polonyi problem. To solve the problem, the enhanced couplings of the Polonyi field to an inflaton, gauge kinetic functions and itself are assumed. As a result, a gaugino mediated SUSY…

高能物理 - 唯象学 · 物理学 2015-06-12 Takeo Moroi , Tsutomu T. Yanagida , Norimi Yokozaki

We present statistically convergent profile likelihood maps obtained via global fits of a phenomenological Minimal Supersymmetric Standard Model with 15 free parameters (the MSSM-15), based on over 250M points. We derive constraints on the…

高能物理 - 唯象学 · 物理学 2015-06-19 C. Strege , G. Bertone , G. J. Besjes , S. Caron , R. Ruiz de Austri , A. Strubig , R. Trotta

Motivated by the recent measurement of muon anomalous magnetic moment at Fermilab, the rapid progress of the LHC search for supersymmetry, and the significantly improved sensitivities of dark matter direct detection experiments, we studied…

高能物理 - 唯象学 · 物理学 2023-11-13 Yangle He , Lei Meng , Yuanfang Yue , Di Zhang

We examine here the constraints from the amount of relic density of neutralino dark matter and other experiments have on the SUSY parameter space for the mSUGRA model and for models with non-universal soft breaking at the GUT scale. In…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Arnowitt , B. Dutta

We consider L-violating Supersymmetric Models to explain the recent muon $g_{\mu} -2$ deviation from the Standard Model. The order of trilinear L-violating couplings which we require also generate neutrino mass which is somewhat higher than…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Adhikari , G. Rajasekaran

We study phenomenological aspects of the MSSM with extra U(1) gauge symmetry. We find that the lightest Higgs boson mass can be increased up to 125 GeV, without introducing a large SUSY scale or large A-terms, in the frameworks of the CMSSM…

高能物理 - 唯象学 · 物理学 2013-05-30 Motoi Endo , Koichi Hamaguchi , Sho Iwamoto , Kazunori Nakayama , Norimi Yokozaki

We give a thorough analysis of the correlation between the muon anomalous magnetic moment and the radiative lepton flavor violating (LFV) processes within the minimal supersymmetric standard model. We find that in the case when the slepton…

高能物理 - 唯象学 · 物理学 2011-09-13 Xiao-Jun Bi , Yu-ping Kuang , Yong-Hong An

From generalized gravity mediation we build a SUGRA scenario in which the gluino is much heavier than the electroweak gauginos at the GUT scale. We find that such a non-universal gaugino scenario with very heavy gluino at the GUT scale can…

高能物理 - 唯象学 · 物理学 2015-06-24 Fei Wang , Wenyu Wang , Jin Min Yang