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An overview of hints for new physics outside the Standard Model and the status of sparticle and Higgs searches is given. The present limits on Higgs bosons of about 90 GeV as well as the $\bsg$ rate and cosmological constraints severely…

High Energy Physics - Phenomenology · Physics 2009-09-25 W. de Boer

In the high-scale (split) MSSM, the measured Higgs mass sets an upper bound on the supersymmetric scalar mass scale MSUSY around $10^{11}$ ($10^{8}$) GeV, for $\tan\beta$ in the standard range and the central value of the top quark mass…

High Energy Physics - Phenomenology · Physics 2018-09-24 Jae-hyeon Park

The absence of low energy supersymmetry in run I data at the LHC has pushed the nominal scale for supersymmetry beyond a TeV. While this is consistent with the discovery of the Higgs boson at \approx 125 GeV, simple models with scalar and…

High Energy Physics - Phenomenology · Physics 2015-10-23 Keith A. Olive

Run I of the LHC has not revealed any sign of new physics beyond the Standard Model (BSM). However, the discovery of an SM-like Higgs boson with mass around 125 GeV opens up new possibilities for probing various BSM scenarios with enlarged…

High Energy Physics - Phenomenology · Physics 2014-07-03 Beranger Dumont

The Higgs sector of the minimal nonlinear supersymmetric SU(5) model contains three mass parameters. Although these mass parameters are essentially free at the electroweak scale, they might have particular values if they evolve from a…

High Energy Physics - Phenomenology · Physics 2009-11-10 Dong Won Lee , Bjong Ro Kim , Sun Kun Oh

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…

High Energy Physics - Phenomenology · Physics 2015-05-27 O. Buchmueller , R. Cavanaugh , D. Colling , A. De Roeck , M. J. Dolan , J. R. Ellis , H. Flacher , S. Heinemeyer , G. Isidori , K. Olive , S. Rogerson , F. Ronga , G. Weiglein

We use the Higgs coupling and the muon anomalous magnetic moment measurements to constrain the parameter space of the natural supersymmetry (SUSY) in the Generalized Minimal Supergravity (GmSUGRA) model. We scan the parameter space of the…

High Energy Physics - Phenomenology · Physics 2016-04-06 Tianjun Li , Shabbar Raza , Kechen Wang

We present a comprehensive analysis of the Non-Minimal Supersymmetric Standard Model (NMSSM) for large values of $\tan\beta$, the ratio of the vacuum expectation values of the two Higgs doublets, which arise when we impose the constraint of…

High Energy Physics - Phenomenology · Physics 2014-11-17 B. Ananthanarayan , P. N. Pandita

New data on the anomalous magnetic moment of the muon together with the b->s gamma decay rate and Higgs limits are considered within the supergravity inspired constrained minimal supersymmetric model. We perform a global statistical chi2…

High Energy Physics - Phenomenology · Physics 2017-08-23 W. de Boer , M. Huber , C. Sander , A. V. Gladyshev , D. I. Kazakov

We investigate the sensitivity of observables measurable in e^+ e^-, gamma gamma and mu^+ mu^- collisions for distinguishing the properties of the light neutral CP-even Higgs boson in the minimal supersymmetric extension of the Standard…

High Energy Physics - Phenomenology · Physics 2009-11-07 John Ellis , Sven Heinemeyer , Keith A. Olive , Georg Weiglein

We review the current status of the Brookhaven muon g - 2 experiment, and it's effects on the SUSY parameter space when combined with dark matter relic density bounds, b->s\gamma and Higgs mass constraints. If the 3\sigma deviation of g - 2…

High Energy Physics - Phenomenology · Physics 2017-08-23 R. Arnowitt , B. Dutta

We study the Higgs sector in the Next-to-Minimal Supersymmetric Standard Model with and without explicit CP violation, focusing on the case of weak scale expectation value of the singlet field. We scan a wide range of the parameter space to…

High Energy Physics - Phenomenology · Physics 2009-11-10 Koichi Funakubo , Shuichiro Tao

We examine the parameter space of the purely phenomenological minimal super- symmetric standard model (MSSM), without assuming any supersymmetry breaking scheme. We find that a large region of the parameter space can indeed yield the…

High Energy Physics - Phenomenology · Physics 2012-02-29 Nishita Desai , Biswarup Mukhopadhyaya , Saurabh Niyogi

In the framework of the MSSM the non-universal boundary conditions of soft SUSY breaking parameters are considered. Taking as input the top, bottom and Z-boson masses, the values of the gauge couplings at the EW scale and the infrared…

High Energy Physics - Phenomenology · Physics 2011-01-27 S. Codoban , M. Jurcisin , D. Kazakov

The Next to Minimal Supersymmetric Standard Model (NMSSM) with a Higgs-singlet coupling {\lambda} close to unity, moderate tan {\beta} and stop masses below 1 TeV minimizes the fine tuning of the electroweak scale, making possible that the…

High Energy Physics - Phenomenology · Physics 2013-06-25 Riccardo Barbieri , Dario Buttazzo , Kristjan Kannike , Filippo Sala , Andrea Tesi

The LHC is already putting bounds on the Higgs mass. In this paper we use those bounds to put constrains on the MSSM parameter space coming from the fact that, in supersymmetry, the Higgs mass is a function of the masses of sparticles, and…

High Energy Physics - Phenomenology · Physics 2013-05-30 M. E. Cabrera , J. A. Casas , A. Delgado

We review different constrained versions of the NMSSM: the fully constrained cNMSSM with universal boundary conditions for gauginos and all soft scalar masses and trilinear couplings, and the NMSSM with soft terms from Gauge Mediated…

High Energy Physics - Phenomenology · Physics 2009-02-02 Ulrich Ellwanger

Recent experimental results from the LHC have placed strong constraints on the masses of QCD-charged superpartners. The MSSM parameter space is also constrained by the measurement of the Higgs boson mass, and the requirement that the relic…

High Energy Physics - Phenomenology · Physics 2021-04-12 Keita Fukushima , Chris Kelso , Jason Kumar , Pearl Sandick , Takahiro Yamamoto

We examine various direct and indirect experimental constraints on the nearly minimal supersymmetric standard model (nMSSM) and obtain the following observations: (i) Current experiments stringently constrain the parameter space, setting a…

High Energy Physics - Phenomenology · Physics 2009-05-29 Junjie Cao , Heather E. Logan , Jin Min Yang

We explore the phenomenology of the full General Gauge Mediation parameter space in the MSSM focusing on the consequences of having a fundamental Higgs around 125 GeV. Assuming GUT-complete structure of the hidden sector, we allow for…

High Energy Physics - Phenomenology · Physics 2013-06-03 Phill Grajek , Alberto Mariotti , Diego Redigolo
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