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In the context of minimal supersymmetric standard model (MSSM), we discuss the possibility of the lightest Higgs boson with mass $M_h = 98 $ GeV to be consistent with the $2.3\sigma$ excess observed at the LEP in the decay mode $e^+e^- \to…

High Energy Physics - Phenomenology · Physics 2016-04-13 Biplob Bhattacherjee , Manimala Chakraborti , Amit Chakraborty , Utpal Chattopadhyay , Dilip Kumar Ghosh

Within the Minimal Supersymmetric Standard Model (MSSM) the production and decay of superpartners can give rise to backgrounds for Higgs boson searches. Here MSSM background processes to the vector boson fusion channel with the Higgs boson…

High Energy Physics - Phenomenology · Physics 2013-09-26 Bastian Feigl , Heidi Rzehak , Dieter Zeppenfeld

We propose a new scenario for solving the tachyonic slepton mass problem of anomaly mediated supersymmetry breaking models with a non-Abelian horizontal gauge symmetry broken at the TeV scale. A specific model based on SU(3)_{H} horizontal…

High Energy Physics - Phenomenology · Physics 2009-11-10 O. C. Anoka , K. S. Babu , I. Gogoladze

The predictions for the mass of the light CP-even Higgs are investigated in the context of a simple extension of the Minimal Supersymmetric Standard Model where the baryon and lepton numbers are local gauge symmetries. This theory predicts…

High Energy Physics - Phenomenology · Physics 2012-05-04 Pavel Fileviez Perez

The prediction for the Higgs mass in the dark matter selected high-scale SUSY is explored. We show the bounds on SUSY-breaking scale in models of SM $+\tilde{w}$ and SM $+\tilde{h}/\tilde{s}$ due to the observed Higgs mass at the LHC. We…

High Energy Physics - Phenomenology · Physics 2015-03-13 Sibo Zheng

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 the framework, "generalized supersoft supersymmetry breaking". "Supersoft" models, with $D$-type supersymmetry breaking and heavy Dirac gauginos, are considerably less constrained by the LHC searches than the well studied MSSM.…

High Energy Physics - Phenomenology · Physics 2015-05-27 Ann E. Nelson , Tuhin S. Roy

Perturbative supersymmetry breaking on the landscape of string vacua is expected to favor large soft terms as a power-law or log distribution, but tempered by an anthropic veto of inappropriate vacua or vacua leading to too large a value…

High Energy Physics - Phenomenology · Physics 2022-01-05 Howard Baer , Vernon Barger , Shadman Salam , Hasan Serce

Recent null results from LHC8 SUSY searches along with the discovery of a SM-like Higgs boson with mass m(h) ~ 125.5 GeV indicates sparticle masses in the TeV range, causing tension with conventional measures of electroweak fine-tuning. We…

High Energy Physics - Phenomenology · Physics 2014-07-02 Howard Baer , Vernon Barger , Dan Mickelson , Maren Padeffke-Kirkland

Introducing an R-symmetry to models of high scale supersymmetry (SUSY) can have interesting consequences, and we focus on two aspects. If Majorana masses are forbidden by an R-symmetry and the main source of electroweak gaugino masses are…

High Energy Physics - Phenomenology · Physics 2013-10-22 James Unwin

Recent results from ATLAS gives a Higgs mass of 125.5 GeV, further constrain already highly constrained supersymmetric models such as pMSSM or CMSSM/mSUGRA. Finding potentially discoverable and non-excluded regions of model parameter space…

High Energy Physics - Phenomenology · Physics 2013-09-05 Thomas Burgess , Jan Øye Lindroos , Anna Lipniacka , Heidi Sandaker

The electroweak symmetry is nonlinearly realized in an extension of the minimal supersymmetric standard model (MSSM) through an additional pair of constrained Higgs doublet superfields. The superpotential couplings of this constrained Higgs…

High Energy Physics - Phenomenology · Physics 2015-05-28 T. E. Clark , S. T. Love , T. ter Veldhuis

In the minimal supersymmetric extension of the Standard Model (MSSM), if the two Higgs doublets are lighter than some subset of the superpartners of the Standard Model particles, then it is possible to integrate out the heavy states to…

High Energy Physics - Phenomenology · Physics 2008-11-26 Howard E. Haber , John D. Mason

We construct a supersymmetric version of the Standard Model which contains a long-lived metastable vacuum. In this vacuum supersymmetry is broken and the electroweak symmetry is Higgsed, and we identify it with the physical ground state of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Steven A. Abel , Valentin V. Khoze

An interesting feature of the next-to-minimal supersymmetric standard model (NMSSM) is that one or more Higgs bosons may be comparably light (M_{H_i}<M_Z) without being in conflict with current experimental bounds. Due to a large singlet…

High Energy Physics - Phenomenology · Physics 2012-01-26 Oscar Stål , Georg Weiglein

Our study starts with a sequence of puzzles that include $(a)$ at which level $\mu$ problem involving electroweak symmetry breaking can be solved; $(b)$ in which paradigm masses of superpartners in the third family can be lighter than in…

High Energy Physics - Phenomenology · Physics 2014-05-02 Sibo Zheng

A simple model for the explanation of the muon anomalous magnetic moment was proposed by the present authors within the context of the minimal supersymmetric standard model [1607.05705, 1608.06618]: "Higgs-anomaly mediation". In the setup,…

High Energy Physics - Phenomenology · Physics 2020-07-15 Tsutomu T. Yanagida , Wen Yin , Norimi Yokozaki

We propose an experimental test of a scenario in the Next-to-Minimal Supersymmetric Standard Model in which both the lightest scalar and the lightest pseudoscalar Higgs bosons have masses around 125 GeV. The pseudoscalar can contribute…

High Energy Physics - Phenomenology · Physics 2013-11-04 Shoaib Munir , Leszek Roszkowski , Sebastian Trojanowski

We show that an enhanced two-photon signal of the Higgs boson, h, observed with 125 GeV mass by the ATLAS and CMS collaborations, can be obtained if it is identified principally with the neutral $H_u^0$ of the two Higgs doublets of minimal…

High Energy Physics - Phenomenology · Physics 2013-05-30 Vernon Barger , Peisi Huang , Muneyuki Ishida , Wai-Yee Keung

The next-to-minimal supersymmetric standard model (NMSSM) with an extended Higgs sector offers one of the Higgs boson as the Standard model (SM) like Higgs with a mass around 125 GeV along with other Higgs bosons with lighter and heavier…

High Energy Physics - Phenomenology · Physics 2017-04-10 Monoranjan Guchait , Jacky Kumar
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