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相关论文: General MSSM signatures at the LHC with and withou…

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We study the possible LHC collider signatures in the next-to-minimal supersymmetric Standard Model (NMSSM). The general NMSSM consists of 29 supersymmetric (SUSY) particles which can be mass ordered in $29! \simeq 9 \cdot 10^{30}$ ways. To…

高能物理 - 唯象学 · 物理学 2013-03-14 H. K. Dreiner , F. Staub , A. Vicente

We study the LHC signature of the minimal supersymmetric standard model with non-universal sfermion masses. In the model, soft masses of gauginos and the 3rd generation of 10 of SU(5) are around the weak scale, while other sfermion soft…

高能物理 - 唯象学 · 物理学 2010-03-02 Sung-Gi Kim , Nobuhiro Maekawa , Keiko I. Nagao , Mihoko M. Nojiri , Kazuki Sakurai

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 study SUSY signatures at the 7, 8 and 14 TeV LHC employing the 19-parameter, R-Parity conserving p(henomenological)MSSM, in the scenario with a neutralino LSP. Our results were obtained via a fast Monte Carlo simulation of the ATLAS SUSY…

高能物理 - 唯象学 · 物理学 2015-03-11 M. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

LHC sparticle search limits are usually performed within the context of simplified models and subsequently interpreted within the 19 parameter phenomenological MSSM (pMSSM) as to how many models avoid search limits for a particular…

高能物理 - 唯象学 · 物理学 2026-02-11 Howard Baer , Vernon Barger , Kairui Zhang

We apply a model-independent, agnostic approach to the collider phenomenology of supersymmetry (SUSY), in which all mass parameters are taken as free inputs at the weak scale. We consider the gauginos, higgsinos, and the first two…

高能物理 - 唯象学 · 物理学 2010-12-03 Partha Konar , Konstantin T. Matchev , Myeonghun Park , Gaurab K. Sarangi

The 19/20-parameter p(henomenological)MSSM with either a neutralino or gravitino LSP offers a flexible framework for the study of a wide variety of R-parity conserving MSSM SUSY phenomena at the 7, 8 and 14 TeV LHC. Here we present the…

高能物理 - 唯象学 · 物理学 2013-10-01 M. Cahill-Rowley , J. L. Hewett , A. Ismail , T. G. Rizzo

The new minimal supersymmetric standard model (nMSSM), a variant of the general next to minimal supersymmetric standard model (NMSSM) without $Z_3$ symmetry, features a naturally light singlino with a mass below 75 GeV. In light of the new…

高能物理 - 唯象学 · 物理学 2016-02-17 D. Barducci , G. Bélanger , C. Hugonie , A. Pukhov

We investigate signatures induced by a very light pseudoscalar Higgs in neutralino decays in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and determine their observability at the LHC. We concentrate on scenarios which feature…

高能物理 - 唯象学 · 物理学 2014-02-17 David G. Cerdeno , Pradipta Ghosh , Chan Beom Park , Miguel Peiro

The recent discovery of a new boson at the LHC, which resembles a SM-like Higgs boson with $m_h=125$ GeV, is starting to provide strong guidelines into SUSY model building. For instance, the identification of such a state with the lightest…

高能物理 - 唯象学 · 物理学 2015-06-12 Ernesto Arganda , J. Lorenzo Diaz-Cruz , Alejandro Szynkman

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 investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks, leptons and LSP in models with effective supersymmetry where third generation of squarks is relatively light while the first two generations…

高能物理 - 唯象学 · 物理学 2009-11-07 S. I. Bityukov , N. V. Krasnikov

The Higgs sector in spontaneously broken R Parity supersymmetry (RPSUSY) shows interesting features that require new search techniques. Both the mass spectrum and production rates may differ from the standard model and minimal…

高能物理 - 唯象学 · 物理学 2009-09-17 J. C. Romão , J. L. Diaz-Cruz , F. de Campos , J. W. F. Valle

We present a 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 gaugino masses…

We propose six new benchmark scenarios for Higgs boson searches in the Minimal Supersymmetric Standard Model. Our calculations follow the recommendations of the LHC Higgs Cross Section Working Group, and benefit from recent developments in…

We examine scenarios in the Next-to-Minimal Supersymmetric Standard Model (NMSSM), where pair-produced squarks and gluinos decay via two cascades, each ending in a stable neutralino as Lightest Supersymmetric Particle (LSP) and a Standard…

高能物理 - 唯象学 · 物理学 2018-11-14 A. Titterton , U. Ellwanger , H. U. Flaecher , S. Moretti , C. H. Shepherd-Themistocleous

The search for heavy Higgs bosons is an important step to probe the parameter space of the Minimal Supersymmetric Standard Model. In this work, we classify all possible decay modes of the supersymmetric heavy Higgs boson using the SModelS…

高能物理 - 唯象学 · 物理学 2017-11-02 Suchita Kulkarni , Lukas Lechner

The $U(1)_{L_\mu-L_\tau}$ extended Standard Model (SM) is anomaly free, and contains a massive $Z^\prime$ boson. The associated Higgs, which generates the $Z'$'s mass via spontaneous symmetry breaking (SSB) can mix with the SM Higgs. The…

高能物理 - 唯象学 · 物理学 2023-11-07 Jochem Kip , Zhongyi Zhang

Discovery of supersymmetric (SUSY) particles at the Large Hadron Collider(LHC) has been studied for the models where squarks and gluino are much heavier than the lightest supersymetric particle (LSP). In this paper, we investigate the SUSY…

高能物理 - 唯象学 · 物理学 2009-11-11 Kiyotomo Kawagoe , Mihoko M. Nojiri

Recent experimental and theoretical determinations of (g-2)_muon, Omega*h^2 and BF(b->s,gamma) place exceedingly tight constraints on the minimal supergravity (mSUGRA) model. We advocate relaxing the generational universality of mSUGRA, so…

高能物理 - 唯象学 · 物理学 2011-07-19 Howard Baer , Alexander Belyaev , Tadas Krupovnickas , Azar Mustafayev
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