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相关论文: The MSSM golden region and its collider signature

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Null results of experimental searches for the Higgs boson and the superpartners imply a certain amount of fine-tuning in the electroweak sector of the Minimal Supersymmetric Standard Model (MSSM). The "golden region" in the MSSM parameter…

高能物理 - 唯象学 · 物理学 2011-11-28 Maxim Perelstein , Christian Spethmann

The experimental search limit on the Higgs boson mass points to a "golden region" in the Minimal Supersymmetric Standard Model parameter space in which the fine-tuning in the electroweak sector is minimized. One of the sbottoms is…

高能物理 - 唯象学 · 物理学 2011-03-14 Honglei Li , Will Parker , Zongguo Si , Shufang Su

If the lightest CP-even Higgs boson in the MSSM is discovered at the LHC, two measurements could be made simultaneously: the Higgs mass m_h and the event rate Bs(gg -> h -> gamma gamma). We study to what extent the combination of these two…

高能物理 - 唯象学 · 物理学 2009-05-01 Ian Low , Shashank Shalgar

Dark matter is examined within the ``golden region'' of the Minimal Supersymmetric Standard Model. This region satisfies experimental constraints, including a lower bound on the Higgs mass of 114 GeV, and minimizes fine-tuning of the Z…

高能物理 - 唯象学 · 物理学 2009-03-12 Junya Kasahara , Katherine Freese , Paolo Gondolo

The recent discovery of a Higgs boson by the LHC experiments has profound implications for supersymmetric models. In particular, in the context of restricted models, such as the supergravity-inspired constrained minimal supersymmetric…

高能物理 - 唯象学 · 物理学 2014-01-06 J. E. Camargo-Molina , B. O'Leary , W. Porod , F. Staub

We critically examine interpretations of hypothetical supersymmetric LHC signals, fitting to alternative wrong models of supersymmetry breaking. The signals we consider are some of the most constraining on the sparticle spectrum: invariant…

高能物理 - 唯象学 · 物理学 2013-05-30 B. C. Allanach , Matthew J. Dolan

We propose using the lightest CP-even Higgs boson in the minimal supersymmetric standard model (MSSM) to probe the stop sector. Unlike measuring stop masses in production/decay processes which requires knowledge of masses and mixing angles…

高能物理 - 唯象学 · 物理学 2008-11-26 Radovan Dermisek , Ian Low

In a supersymmetric extension of the Standard Model of particle physics (SM) with low scale of supersymmetry breaking, sgoldstino of (sub)TeV mass can be observed at the Large Hadron Collider (LHC) as a peak in diboson mass spectra.…

高能物理 - 唯象学 · 物理学 2020-06-24 S. Demidov , D. Gorbunov , E. Kriukova

Uncertainties of the MSSM predictions are due to an unknown SUSY breaking mechanism. To reduce these uncertainties, one usually imposes constraints on the MSSM parameter space. Recently, two new constraints became available, both from…

高能物理 - 唯象学 · 物理学 2009-11-11 D. Yu. Bogachev , A. V. Gladyshev , D. I. Kazakov , A. S. Nechaev

We present an updated and extended global analysis of the Constrained MSSM (CMSSM) taking into account new limits on supersymmetry from ~5/fb data sets at the LHC. In particular, in the case of the razor limit obtained by the CMS…

Naturalness arguments suggest that the stop sector is within reach of the Large Hadron Collider (LHC). We investigate how the observation of a third generation squark signal could predict masses and discovery modes of other supersymmetric…

高能物理 - 唯象学 · 物理学 2018-06-15 Aaron Pierce , Bibhushan Shakya

Exploring MSSM parameter space after the discovery of Higgs Boson with mass 125 GeV naturally demands large top-squark mixing or large trilinear coupling parameter $A_t$ in particular, so as to avoid excessively heavy squark, specially for…

高能物理 - 唯象学 · 物理学 2015-06-22 Utpal Chattopadhyay , Abhishek Dey

We perform a forecast of the MSSM with universal soft terms (CMSSM) for the LHC, based on an improved Bayesian analysis. We do not incorporate ad hoc measures of the fine-tuning to penalize unnatural possibilities: such penalization arises…

高能物理 - 唯象学 · 物理学 2010-12-13 Maria Eugenia Cabrera , Alberto Casas , Roberto Ruiz de Austri

Production of the lightest MSSM Higgs boson h is studied at the LHC. Isorate contours for the h -> gamma gamma and h -> tau+tau- decay channels are shown in the m_A,tan(beta) parameter space. Effects of the SUSY parameters, in particular…

高能物理 - 唯象学 · 物理学 2008-11-26 R. Kinnunen , S. Lehti , A. Nikitenko , P. Salmi

We analyze minimal supersymmetric models in order to determine in what parameter regions with what amount of fine-tuning they are capable of accomodating the LHC-allowed top-stop degeneracy window. The stops must be light enough to enable…

高能物理 - 唯象学 · 物理学 2014-11-26 Durmus Ali Demir , Cem Salih Un

We investigate the hadron collider phenomenology of the Minimal Supersymmetric Standard Model (MSSM) with explicit CP violation for Higgs bosons that can be observed in Standard Model search channels: W/ZH(->b-bbar) at the Tevatron, and…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Carena , J. Ellis , S. Mrenna , A. Pilaftsis , C. E. M. Wagner

The constraints imposed on the Minimal Supersymmetric Standard Model (MSSM) parameter space by the Large Hadron Collider (LHC) Higgs mass limit and gluino mass lower bound are revisited. We also analyze the thermal relic abundance of…

高能物理 - 唯象学 · 物理学 2016-01-12 W. Abdallah , S. Khalil

We study the complementarity between dark matter experiments (direct detection and indirect detections) and accelerator facilities (the CERN LHC and a $\sqrt{s}= 1$ TeV $e^+e^-$ Linear Collider) in the framework of the constrained Minimal…

高能物理 - 唯象学 · 物理学 2008-11-26 Y. Mambrini , E. Nezri

We identify a benchmark point in the CMSSM's heavy stau-coannihilation region, which is favored by experiments, and demonstrate that it could be accessible to the LHC at $\sqrt{s}=14$ TeV with 300/fb of integrated luminosity via a golden…

高能物理 - 唯象学 · 物理学 2014-12-19 Andrew Fowlie , Malgorzata Kazana , Leszek Roszkowski

In this paper, we search for the regions of the phenomenological minimal supersymmetric standard model (pMSSM) parameter space where one can expect to have moderate Higgs mixing angle ($\alpha$) with relatively light (up to 600 GeV)…

高能物理 - 唯象学 · 物理学 2015-11-19 Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury
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