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相关论文: Frequentist Analysis of the Parameter Space of Min…

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While the constrained minimal supersymmetric standard model (CMSSM) with universal gaugino masses, m_{1/2}, scalar masses, m_0, and A-terms, A_0, defined at some high energy scale (usually taken to be the GUT scale) is motivated by general…

高能物理 - 唯象学 · 物理学 2015-06-05 Emilian Dudas , Yann Mambrini , Azar Mustafayev , Keith A. Olive

We consider very constrained versions of the minimal supersymmetric extension of the Standard Model (VCMSSMs) which, in addition to constraining the scalar masses m_0 and gaugino masses m_{1/2} to be universal at some input scale, impose…

高能物理 - 唯象学 · 物理学 2008-11-26 John Ellis , Keith A. Olive , Yudi Santoso , Vassilis C. Spanos

We describe a likelihood analysis using MasterCode of variants of the MSSM in which the soft supersymmetry-breaking parameters are assumed to have universal values at some scale $M_{in}$ below the supersymmetric grand unification scale…

We discuss several phenomenological aspects of the fully constrained version of the next-to-minimal supersymmetric extension of the standard model (cNMSSM). Assuming universal boundary conditions at a high energy scale for the soft…

高能物理 - 唯象学 · 物理学 2009-04-17 A. Djouadi , U. Ellwanger , A. M. Teixeira

Phenomenologically viable and interesting regions of parameter space in the minimal super-gravity (mSUGRA) model with small $m_0$ and small $m_{1/2}$ consistent with the WMAP data on dark matter relic density and the bound on the mass of…

高能物理 - 唯象学 · 物理学 2008-11-26 Utpal Chattopadhyay , Debottam Das , Amitava Datta , Sujoy Poddar

We perform a comprehensive analysis of the Minimal Supersymmetric Standard Model (MSSM) in the scenario where the scalar partners of the fermions and the Higgs particles (except for the Standard-Model-like one) are assumed to be very heavy…

高能物理 - 唯象学 · 物理学 2011-12-09 Nicolas Bernal , Abdelhak Djouadi , Pietro Slavich

We provide an up-to-date analysis of the parameter space of the minimal supergravity model (mSUGRA). Novel features include the new central value of the top quark mass, an improved calculation of the masses of the supersymmetric particles…

高能物理 - 唯象学 · 物理学 2010-02-03 Abdelhak Djouadi , Manuel Drees , Jean-Loic Kneur

The CMS and ATLAS Collaborations have recently published the results of initial direct LHC searches for supersymmetry analyzing ~ 35/pb of data taken at 7 TeV in the centre of mass. We incorporate these results into a frequentist analysis…

Most of the phenomenological studies of supersymmetry have been carried out using the so-called minimal supergravity scenario, where one assumes a universal scalar mass, gaugino mass, and trilinear coupling at M_{GUT}. Even though this is a…

高能物理 - 唯象学 · 物理学 2009-09-29 Andre de Gouvea , Alexander Friedland , Hitoshi Murayama

We revisit minimal supersymmetric SU(5) grand unification (GUT) models in which the soft supersymmetry-breaking parameters of the minimal supersymmetric Standard Model (MSSM) are universal at some input scale, $M_{in}$, above the…

高能物理 - 唯象学 · 物理学 2016-11-14 John Ellis , Jason L. Evans , Azar Mustafayev , Natsumi Nagata , Keith A. Olive

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

We explore the full parameter space of Minimal Supergravity (mSUGRA), allowing all four continuous parameters (the scalar mass m_0, the gaugino mass m_1/2, the trilinear coupling A_0, and the ratio of Higgs vacuum expectation values tan…

高能物理 - 唯象学 · 物理学 2011-07-19 Edward A. Baltz , Paolo Gondolo

Indirect information about the possible scale of supersymmetry (SUSY) breaking is provided by B-physics observables (BPO) as well as electroweak precision observables (EWPO). We combine the constraints imposed by recent measurements of the…

高能物理 - 唯象学 · 物理学 2009-01-06 J. Ellis , S. Heinemeyer , K. A. Olive , A. M. Weber , G. Weiglein

We explore the parameter space of the minimal supersymmetric extension of the Standard Model (MSSM), allowing the soft supersymmetry-breaking masses of the Higgs multiplets, m_{1,2}, to be non-universal (NUHM). Compared with the constrained…

高能物理 - 唯象学 · 物理学 2009-09-29 J. Ellis , T. Falk , K. A. Olive , Y. Santoso

Recent measurements by Planck, LHC experiments, and Xenon100 have significant impact on supersymmetric models and their parameters. We first illustrate the constraints in the mSUGRA plane and then perform a detailed analysis of the general…

We perform a complete analysis of the supersymmetric particle spectrum in the Minimal Supergravity (mSUGRA) model where the soft SUSY breaking scalar masses, gaugino masses and trilinear couplings are unified at the GUT scale, so that the…

高能物理 - 唯象学 · 物理学 2010-02-03 A. Djouadi , M. Drees , J. L. Kneur

Within the minimal supergravity model (mSUGRA) framework, the expectation for the relic density of neutralinos exceeds the WMAP determination unless neutralinos a) have a significant higgsino component, b) have a mass close to half that of…

高能物理 - 唯象学 · 物理学 2009-11-10 Howard Baer , Azar Mustafayev , Stefano Profumo , Alexander Belyaev , Xerxes Tata

The apparent discovery of a Higgs boson with mass ~125 GeV has had a significant impact on the constrained minimal supersymmetric extension of the Standard Model in which the scalar masses, gaugino masses and tri-linear A-terms are assumed…

高能物理 - 唯象学 · 物理学 2015-06-12 John Ellis , Feng Luo , Keith A. Olive , Pearl Sandick

A survey of the mSUGRA/CMSSM parameter space is presented. The viable regions of the parameter space which satisfy all experimental constraints are identified and discussed. These constraints include a 124-127 GeV mass for the lightest…

高能物理 - 唯象学 · 物理学 2013-05-23 Van E. Mayes

We study supersymmetric scenarios in which the gluino is the next-to-lightest supersymmetric particle (NLSP), with a mass sufficiently close to that of the lightest supersymmetric particle (LSP) that gluino coannihilation becomes important.…

高能物理 - 唯象学 · 物理学 2016-03-23 John Ellis , Jason L. Evans , Feng Luo , Keith A. Olive
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