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We review results from our frequentist analysis of the parameter space of the pMSSM10, in which the following 10 soft SUSY-breaking parameters are specified independently at the mean scalar top mass scale Msusy = \sqrt{M_stop1 M_stop2}: the…

高能物理 - 唯象学 · 物理学 2016-02-26 S. Heinemeyer

The cosmological constant problem is a failure of naturalness and suggests that a fine-tuning mechanism is at work, which may also address the hierarchy problem. An example -- supported by Weinberg's successful prediction of the…

高能物理 - 理论 · 物理学 2009-11-10 Nima Arkani-Hamed , Savas Dimopoulos

In this analysis we explore the phenomenological constraints of models with non-holomorphic soft SUSY breaking terms in a beyond the MSSM scenario having identical particle content. The model referred as NHSSM shows various promising…

高能物理 - 唯象学 · 物理学 2016-11-03 Utpal Chattopadhyay , Abhishek Dey

By extending a previously proposed conformal gauge mediation model, we construct a gauge-mediated SUSY breaking (GMSB) model where a SUSY-breaking scale, a messenger mass, the $\mu$-parameter and the gravitino mass in a minimal…

高能物理 - 唯象学 · 物理学 2021-05-18 Gongjun Choi , Tsutomu T. Yanagida , Norimi Yokozaki

We interpret reported hints of a Standard Model Higgs boson at ~ 125 GeV in terms of high-scale supersymmetry breaking with a shift symmetry in the Higgs sector. More specifically, the Higgs mass range suggested by recent LHC data…

高能物理 - 理论 · 物理学 2015-06-04 Arthur Hebecker , Alexander K. Knochel , Timo Weigand

The ATLAS and CMS collaborations have announced discovery of a ~125 GeV Higgs boson, after a combined analysis of the di-photon and ZZ search channels. This observation has significant impact on low-energy supersymmetry. First, some…

高能物理 - 唯象学 · 物理学 2013-05-30 Haipeng An , Tao Liu , Lian-Tao Wang

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

The minimal supersymmetric extension of the Standard Model (SM) is a well motivated scenario for physics beyond the SM, which allows a perturbative description of the theory up to scales of the order of the Grand Unification scale, where…

高能物理 - 唯象学 · 物理学 2015-06-18 Antonio Delgado , Mariano Quiros , Carlos Wagner

We show that by combining the elementary-Goldstone-Higgs scenario and supersymmetry it is possible to raise the scale of supersymmetry breaking to several TeVs by relating it to the spontaneous-symmetry-breaking one. This is achieved by…

高能物理 - 唯象学 · 物理学 2017-09-13 Tommi Alanne , Heidi Rzehak , Francesco Sannino , Anders Eller Thomsen

In the $SO(5) \times U(1)$ gauge-Higgs unification in the Randall-Sundrum (RS) warped space the Higgs boson naturally becomes stable. The model is consistent with the current collider signatures only for a large warp factor $z_L > 10^{15}$…

高能物理 - 唯象学 · 物理学 2015-06-03 Hisaki Hatanaka , Yutaka Hosotani

We study the muon anomalous magnetic moment (muon g-2) and the Higgs boson mass in a simple extension of the minimal supersymmetric (SUSY) Standard Model with extra vector-like matters, in the frameworks of gauge mediated SUSY breaking…

高能物理 - 唯象学 · 物理学 2013-05-29 Motoi Endo , Koichi Hamaguchi , Sho Iwamoto , Norimi Yokozaki

The recent discovery of a 125 GeV Higgs-like resonance at LHC, coupled with the lack of evidence for weak scale supersymmetry (SUSY), have severely constrained SUSY models such as mSUGRA/CMSSM. As LHC probes deeper into SUSY model parameter…

高能物理 - 唯象学 · 物理学 2015-06-11 Howard Baer , Vernon Barger , Peisi Huang , Dan Mickelson , Azar Mustafayev , Xerxes Tata

We study the NMSSM with universal Susy breaking terms (besides the Higgs sector) at the GUT scale. Within this constrained parameter space, it is not difficult to find a Higgs boson with a mass of about 125 GeV and an enhanced cross section…

高能物理 - 唯象学 · 物理学 2012-10-09 Ulrich Ellwanger , Cyril Hugonie

We use the Higgs coupling and the muon anomalous magnetic moment measurements to constrain the parameter space of the natural supersymmetry (SUSY) in the Generalized Minimal Supergravity (GmSUGRA) model. We scan the parameter space of the…

高能物理 - 唯象学 · 物理学 2016-04-06 Tianjun Li , Shabbar Raza , Kechen Wang

An excess of events at a mass of ~ 125 GeV has been reported by both ATLAS and CMS collaborations using 5/fb of data. If this excess of events is confirmed by further searches with more data, it will have extremely important consequences in…

高能物理 - 唯象学 · 物理学 2012-05-15 F. Mahmoudi

We review the result of SUSY parameter fits based on frequentist analyses of experimental constraints from electroweak precision data, (g-2)_mu, B-physics and cosmological data. We investigate the parameters of the constrained MSSM (CMSSM)…

高能物理 - 唯象学 · 物理学 2010-12-13 S. Heinemeyer , G. Weiglein

In supersymmetric models where the superpotential mu term is generated with mu<< m_{soft} (e.g. from radiative Peccei-Quinn symmetry breaking or compactified string models with sequestration and stabilized moduli), and where the string…

高能物理 - 唯象学 · 物理学 2016-06-22 Howard Baer , Vernon Barger , Michael Savoy , Hasan Serce

The recent results from the ATLAS and CMS collaborations show that the allowed range for a Standard Model Higgs boson is now restricted to a very thin region. Although those limits are presented exclusively in the framework of the SM, the…

高能物理 - 唯象学 · 物理学 2015-03-19 F. Boudjema , G. Drieu La Rochelle

We explore supersymmetry (SUSY) parameter space with non-universal high scale parameters in gravity mediated SUSY breaking (SUGRA) scenario that accommodates a Higgs mass of (125$\pm$2) GeV while satisfying cold dark matter relic density…

高能物理 - 唯象学 · 物理学 2014-01-22 Subhaditya Bhattacharya , Shreyashi Chakdar , Kirtiman Ghosh , S. Nandi

These lectures are a very brief introduction to low energy supersymmetry (SUSY). The approach to the construction of SUSY Lagrangians based on the superfield formalism is considered. The minimal supersymmetric standard model (MSSM) is…

高能物理 - 唯象学 · 物理学 2012-01-04 R. Nevzorov