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相关论文: Decays of Supersymmetric Particles: the program SU…

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To escape the current LHC supersymmetry (SUSY) search constraints while preserve the naturalness condition, we propose the heavy Lightest Supersymmetric Particle (LSP) SUSY. According to the different dependence on the LSP mass, we…

高能物理 - 唯象学 · 物理学 2015-05-11 Taoli Cheng , Jinmian Li , Tianjun Li

The Monte Carlo program \texttt{SUSYGEN}, initially designed for computing distributions and generating events for supersymmetric particle production in $e^+e^-$ collisions, has now been upgraded to study supersymmetric processes at linear…

高能物理 - 唯象学 · 物理学 2007-05-23 Nabil Ghodbane

We present the full next-to-leading order (NLO) supersymmetric (SUSY) electroweak and SUSY-QCD corrections to the decay widths of the charged Higgs boson decays into on-shell final states in the framework of the CP-conserving and…

高能物理 - 唯象学 · 物理学 2021-05-19 Thi Nhung Dao , Margarete Muhlleitner , Shruti Patel , Kodai Sakurai

We demonstrate that supersymmetric decay modes of the neutral Higgs bosons of the MSSM could well make their detection extremely difficult when produced singly in $\gam\gam$ collisions at a back-scattered laser beam facility.

高能物理 - 唯象学 · 物理学 2009-10-28 J. F. Gunion , J. G. Kelly , J. Ohnemus

A pressing problem for supersymmetry (SUSY) phenomenologists is how to incorporate Large Hadron Collider search results into parameter fits designed to measure or constrain the SUSY parameters. Owing to the computational expense of fully…

高能物理 - 唯象学 · 物理学 2015-05-28 A. Buckley , A. Shilton , M. J. White

Two loop renormalization group equations for dimensionless as well as dimensionful parameters are obtained for the low energy theories that result from decoupling heavy scalar particles in Split SUSY and Effective SUSY scenarios, assuming…

高能物理 - 唯象学 · 物理学 2015-03-13 C. Tamarit

We present the GAMBIT modules SpecBit, DecayBit and PrecisionBit. Together they provide a new framework for linking publicly available spectrum generators, decay codes and other precision observable calculations in a physically and…

Sparticle mass hierarchies contain significant information regarding the origin and nature of supersymmetry breaking. The hierarchical patterns are severely constrained by electroweak symmetry breaking as well as by the astrophysical and…

高能物理 - 唯象学 · 物理学 2015-02-04 David Francescone , Sujeet Akula , Baris Altunkaynak , Pran Nath

We analyze neutral Higgs boson decays into squark pairs in the minimal supersymmetric extension of the Standard Model and improve previous analyses. In particular the treatment of potentially large higher-order corrections due to the soft…

高能物理 - 唯象学 · 物理学 2013-05-30 E. Accomando , G. Chachamis , F. Fugel , M. Spira , M. Walser

The problem of the origin of the mu parameter in the Minimal Supersymmetric Standard Model can be solved by introducing singlet supermultiplets with non-renormalizable couplings to the ordinary Higgs supermultiplets. The Peccei-Quinn…

高能物理 - 唯象学 · 物理学 2009-10-31 Stephen P. Martin

Recently, refinements have been made on both the theoretical and experimental determinations of the i.) mass of the lightest Higgs scalar (m_h), ii.) relic density of cold dark matter in the universe (Omega_CDM h^2), iii.) branching…

高能物理 - 唯象学 · 物理学 2015-06-25 H. Baer , C. Balazs , A. Belyaev , J. Mizukoshi , X. Tata , Y. Wang

We discuss the motivations and implications of models of low-energy supersymmetry. We present the case for the minimal supersymmetric standard model, which we define to include the minimal particle content and soft supersymmetry-breaking…

高能物理 - 唯象学 · 物理学 2016-11-03 M. Drees , S. P. Martin

In light of recent remarkable progress in Higgs search at the LHC, we study the rare decay process $h \to Z\gamma$ and show its correlation with the decay $h \to \gamma\gamma$ in low energy SUSY models such as CMSSM, MSSM, NMSSM and nMSSM.…

高能物理 - 唯象学 · 物理学 2015-06-12 Junjie Cao , Lei Wu , Peiwen Wu , Jin Min Yang

We present comprehensive global fits of supersymmetric (SUSY) models from the Global and Modular Beyond-the-Standard-Model Inference Tool (GAMBIT) collaboration, based on arXiv:1705.07935 and arXiv:1705.07917. We investigate several…

高能物理 - 唯象学 · 物理学 2020-08-12 Peter Athron

This article describes the code SusHi (for "Supersymmetric Higgs") which calculates the cross sections $pp/p\bar{p}\rightarrow\phi+X$ in gluon fusion and bottom-quark annihilation in the SM and the MSSM, where $\phi$ is any of the neutral…

高能物理 - 唯象学 · 物理学 2013-03-20 Robert V. Harlander , Stefan Liebler , Hendrik Mantler

The weak decays of $\Lambda_b \to \Lambda l^{+} l^{-}$ ($l=e, \mu$) are investigated in Minimal Supersymmetric Standard Model (MSSM) and also in Supersymmetric (SUSY) SO(10) Grand Unified Models. In MSSM the special attention is paid to the…

高能物理 - 唯象学 · 物理学 2009-01-08 M. Jamil Aslam , Yu-Ming Wang , Cai-Dian Lu

Noscale supersymmetry (SUSY) breaking model is investigated in the minimal extension of the minimal supersymmetric standard model (MSSM) with a gauged U(1)_{B-L} symmetry. We specifically consider a unification-inspired model with the gauge…

高能物理 - 唯象学 · 物理学 2009-11-07 Masaaki Fujii , Koshiro Suzuki

We propose the Supersymmetric Standard Models (SSMs) with a pseudo-Dirac gluino from hybrid $F-$ and $D-$term supersymmetry (SUSY) breakings. Similar to the SSMs before the LHC, all the supersymmetric particles in the Minimal SSM (MSSM)…

高能物理 - 唯象学 · 物理学 2015-07-16 Ran Ding , Tianjun Li , Florian Staub , Chi Tian , Bin Zhu

If collider experiments demonstrate that the Minimal Supersymmetric Standard Model (MSSM) is a good description of nature at the weak scale, the experimental priority will be the precise determination of superpartner masses. These masses…

高能物理 - 唯象学 · 物理学 2014-11-21 Marcela Carena , Patrick Draper , Nausheen R. Shah , Carlos E. M. Wagner

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