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Recent results from the WMAP measurements of the cosmic background radiation yield very tight constraints on the relic density of supersymmetric cold dark matter. We combine the WMAP constraint with those from the anomalous magnetic moment…

High Energy Physics - Phenomenology · Physics 2008-11-26 Howard Baer , Csaba Balazs

We estimate the bounds on Higgs and sparticle masses and discuss their correlations in the constrained minimal supersymmetric standard model (CMSSM). In our analysis we have applied the present constraints from collider and low energy…

High Energy Physics - Phenomenology · Physics 2011-11-10 Alexander Belyaev , Shahida Dar , Ilia Gogoladze , Azar Mustafayev , Qaisar Shafi

The ATLAS and CMS experiments at the Large Hadron Collider (LHC) at CERN have searched for signals of new physics, in particular for supersymmetry. The data collected until 2012 at center-of-mass energies of 7 and 8 TeV and integrated…

High Energy Physics - Experiment · Physics 2016-09-07 Christian Autermann

To explaine the matter-antimatter asymmetry, a supersymmetric extention of the standard model is proposed where baryon and lepton numbers are local gauged(BLMSSM), and exotic superfields are introduced when gauge group is enlarged to…

High Energy Physics - Phenomenology · Physics 2017-08-23 Hui Li , Jian-Bin Chen , Li-Li Xing

The dwarf galaxy Segue 1 is one of the most promising targets for the indirect detection of dark matter. Here we examine what constraints 9 months of Fermi-LAT gamma-ray observations of Segue 1 place upon the Constrained Minimal…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Pat Scott , Jan Conrad , Joakim Edsjö , Lars Bergström , Christian Farnier , Yashar Akrami

We examine whether parameters related to Higgs sector of the minimal supersymmetric standard model can be determined by detailed study of production cross section and decay branching ratios of the Higgs boson. Assuming that only the light…

High Energy Physics - Phenomenology · Physics 2016-09-06 Jun-ichi Kamoshita

In order to place limits on dark matter (DM) properties using $\gamma$-ray observations, previous analyses have often assumed a very simple parametrisation of the $\gamma$-ray annihilation yield; typically, it has been assumed that…

High Energy Astrophysical Phenomena · Physics 2012-08-21 Joachim Ripken , Jan Conrad , Pat Scott

We present statistically convergent profile likelihood maps obtained via global fits of a phenomenological Minimal Supersymmetric Standard Model with 15 free parameters (the MSSM-15), based on over 250M points. We derive constraints on the…

High Energy Physics - Phenomenology · Physics 2015-06-19 C. Strege , G. Bertone , G. J. Besjes , S. Caron , R. Ruiz de Austri , A. Strubig , R. Trotta

The CMS and the ATLAS Collaborations have recently reported on the search for supersymmetry with 35 pb$^{-1}$ of data and have put independent limits on the parameter space of the supergravity unified model with universal boundary…

High Energy Physics - Phenomenology · Physics 2011-07-26 Sujeet Akula , Ning Chen , Daniel Feldman , Mengxi Liu , Zuowei Liu , Pran Nath , Gregory Peim

Latest CMS results on the upper limits on $\sigma_{H^\pm}$BR($H^\pm \rightarrow \tau^\pm\nu)$ and $\sigma_{H^\pm}$BR($H^+ \rightarrow t\bar{b}$) for $\sqrt{s}=13$ TeV at an integrated luminosity of 35.9 fb$^{-1}$ are used to impose…

High Energy Physics - Phenomenology · Physics 2019-11-18 Prasenjit Sanyal

For the experimental search of neutralino dark matter, it is important to know its allowed mass and scattering cross section with the nucleon. In order to figure out how light a neutralino dark matter can be predicted in low energy…

High Energy Physics - Phenomenology · Physics 2011-09-12 Junjie Cao , Ken-ichi Hikasa , Wenyu Wang , Jin Min Yang

We make frequentist analyses of the CMSSM, NUHM1, VCMSSM and mSUGRA parameter spaces taking into account all the public results of searches for supersymmetry using data from the 2010 LHC run and the Xenon100 direct search for dark matter…

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…

In this article we analyze the impact of B-physics and Higgs physics at LEP on standard and non-standard Higgs bosons searches at the Tevatron and the LHC, within the framework of minimal flavor violating supersymmetric models. The…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Carena , A. Menon , C. E. M. Wagner

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 contributions of supersymmetric particles in the isospin symmetry violation in B -> K* gamma decay mode are investigated. The model parameters are adopted from minimal Supergravity with minimal flavor violation. A complete scan of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. R. Ahmady , F. Mahmoudi

Taking into account the available accelerator and astrophysical constraints, the mass of the lightest neutral Higgs boson h in the minimal supersymmetric extension of the Standard Model with universal soft supersymmetry-breaking masses…

High Energy Physics - Phenomenology · Physics 2015-06-04 John Ellis , Keith A. Olive

The search for MSSM Higgs bosons will be an important goal at the LHC. We analyze the search reach of the CMS experiment for the heavy neutral MSSM Higgs bosons with an integrated luminosity of 30 or 60 fb^-1. This is done by combining the…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Gennai , S. Heinemeyer , A. Kalinowski , R. Kinnunen , S. Lethi , A. Nikitenko , G. Weiglein

In this work, we present limits on natural supersymmetry scenarios based on searches in data taken during run 1 of the LHC. We consider a set of 22000 model points in a six dimensional parameter space. These scenarios are minimal in the…

High Energy Physics - Phenomenology · Physics 2016-05-18 M. Drees , J. S. Kim

The parameters of the Higgs potential of the Minimal Supersymmetric Standard Model (MSSM) receive large radiative corrections which lift the mass of the lightest Higgs boson to the measured value of 126 GeV. Depending on the MSSM…

High Energy Physics - Phenomenology · Physics 2015-09-23 Markus Bobrowski , Guillaume Chalons , Wolfgang G. Hollik , Ulrich Nierste
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