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相关论文: Experimental constraints on nMSSM and implications…

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We investigate the phenomenology of the Nearly Minimal Supersymmetric Standard Model (nMSSM) in the deflected anomaly mediation scenario. We also include the Fayet-Iliopoulos D-term of the standard model gauge group. In the nMSSM, the mu…

高能物理 - 唯象学 · 物理学 2010-04-28 Norimi Yokozaki

This is a brief overview on the low energy supersymmetry in light of current experiments including the LHC searches, the dark matter (DM) detections, the muon g-2 and the CDF II measurement of the W-boson mass. We focus on the minimal…

高能物理 - 唯象学 · 物理学 2022-11-15 Jin Min Yang , Pengxuan Zhu , Rui Zhu

The modest addition of the dimension-5 term lambda(H_u.H_d)^2/M to the superpotential of the minimal supersymmetric standard model (MSSM) originated from physics beyond the MSSM (BMSSM) has a significant impact on the scenario of the…

高能物理 - 唯象学 · 物理学 2015-05-13 Kingman Cheung , Seong Youl Choi , Jeonghyeon Song

Assuming that the lightest supersymmetric particle (LSP) is the lightest neutralino, we present a detailed exploration of neutralino-stau coannihilation channels, including analytical expressions and numerical results. We also include…

高能物理 - 唯象学 · 物理学 2009-09-11 J. Ellis , T. Falk , K. A. Olive , M. Srednicki

We analyze the implications of several recent cosmological and experimental measurements for the mass spectra of the Constrained MSSM (CMSSM). We compute the relic abundance of the neutralino and compare the new cosmologically expected and…

高能物理 - 唯象学 · 物理学 2009-11-07 Leszek Roszkowski , Roberto Ruiz de Austri , Takeshi Nihei

Within the framework of the Next-To-Minimal Supersymmetric Standard Model (NMSSM) we study neutralino production $e^+e^- \longrightarrow \tilde{\chi}^0_i \tilde{\chi}^0_j$ ($i,j=1,\ldots ,5$) at center-of-mass energies between 100 and 600…

高能物理 - 唯象学 · 物理学 2014-11-17 F. Franke , H. Fraas

Searches for the Minimal Supersymmetric Standard Model (MSSM) Higgs bosons are among the most promising channels for exploring new physics at the Tevatron. In particular, interesting regions of large $\tan \beta$ and small $m_A$ are probed…

高能物理 - 唯象学 · 物理学 2008-11-26 Marcela Carena , Dan Hooper , Peter Skands

We study the phenomenology of the Peccei-Quinn invariant extension of the next-to-minimal supersymmetric standard model (NMSSM) in view of the recent discovery of a 125 GeV Higgs boson. The minimal model having no quadratic and cubic terms…

高能物理 - 唯象学 · 物理学 2012-11-30 Kyu Jung Bae , Kiwoon Choi , Eung Jin Chun , Sang Hui Im , Chan Beom Park , Chang Sub Shin

The constrained minimal supersymmetric standard model with mu>0 supplemented by an `asymptotic' Yukawa coupling quasi-unification condition, which allows an acceptable b-quark mass, is reinvestigated. Imposing updated constraints from the…

高能物理 - 唯象学 · 物理学 2015-03-19 N. Karagiannakis , G. Lazarides , C. Pallis

The next-to-minimal supersymmetric standard model (NMSSM) naturally provides a 125 GeV Higgs boson without the need for large loop corrections from multi-TeV stop quarks. Furthermore, the NMSSM provides an electroweak scale dark matter…

高能物理 - 唯象学 · 物理学 2019-09-18 C. Beskidt , W. de Boer

Measurements at low energies provide interesting indirect information about masses of particles that are (so far) too heavy to be produced directly. Motivated by recent progress in consistently and rigorously calculating electroweak…

高能物理 - 唯象学 · 物理学 2008-11-26 O. Buchmueller , R. Cavanaugh , A. De Roeck , S. Heinemeyer , G. Isidori , P. Paradisi , F. J. Ronga , A. M. Weber , G. Weiglein

We study the neutralino relic density in the minimal supersymmetric standard model with natural light Higgs sector in which all Higgs masses, the supersymmetry (SUSY) breaking parameters, and the higgsino mass parameter mu are of order the…

高能物理 - 唯象学 · 物理学 2009-02-19 S. -G. Kim , N. Maekawa , K. I. Nagao , K. Sakurai , T. Yoshikawa

Taking a bottom-up point of view and focussing on the lack of signals so far in the Higgs and in the flavour sectors, we argue in favour of giving consideration to supersymmetric extensions of the Standard Model where the lightest Higgs…

高能物理 - 唯象学 · 物理学 2010-09-02 Riccardo Barbieri , Enrico Bertuzzo , Marco Farina , Paolo Lodone , Duccio Pappadopulo

We study the phenomenology of Higgs bosons close to 126 GeV within the scale invariant unconstrained next-to-minimal supersymmetric Standard Model (NMSSM), focusing on the regions of parameter space favoured by low fine-tuning…

高能物理 - 唯象学 · 物理学 2015-06-12 Stephen F. King , Margarete Muhlleitner , Roman Nevzorov , Kathrin Walz

We consider the Minimal Supersymmetric Standard Model (MSSM) with varying amounts of non-universality in the soft supersymmetry-breaking contributions to the Higgs scalar masses. In addition to the constrained MSSM (CMSSM) in which these…

高能物理 - 唯象学 · 物理学 2014-11-20 Pearl Sandick

Benchmarks for beyond the Standard Model (BSM) searches are mostly constructed around particular features of interest related to the experiment under consideration without giving due address to the results from other experiments. In this…

高能物理 - 唯象学 · 物理学 2024-12-04 S. AbdusSalam , S. S. Barzani , M. Mohammadidoust , S. A. Ojaghi , L. Velasco-Sevilla

It is well known that excessively heavy supersymmetric particles (sparticles) are disfavored to explain the $(g-2)_\mu$ anomaly, but some people overlook that moderately light sparticles are also disfavored by the LHC probes of…

高能物理 - 唯象学 · 物理学 2022-10-18 Junjie Cao , Fei Li , Jingwei Lian , Yusi Pan , Di Zhang

We investigate the prospects for neutralino dark matter within the Supersymmetric Standard Model (SSM) including the constraints from universal soft supersymmetry breaking and radiative breaking of the electroweak symmetry. The latter is…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Kelley , J. Lopez , D. Nanopoulos , H. Pois , K. Yuan

We review the current best fit values of Higgs boson masses in the Standard Model (SM) and its minimal supersymmetric extension (MSSM) obtained from existing experimental data. We also review the parameters space of the constrained MSSM…

高能物理 - 唯象学 · 物理学 2009-06-26 S. Heinemeyer

We study a limit of the nearly-Peccei-Quinn-symmetric Next-to-Minimal Supersymmetric Standard Model possessing novel Higgs and dark matter (DM) properties. In this scenario, there naturally co-exist three light singlet-like particles: a…

高能物理 - 唯象学 · 物理学 2011-11-14 Patrick Draper , Tao Liu , Carlos E. M. Wagner , Lian-Tao Wang , Hao Zhang