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It is well known that in the MSSM the lightest neutral Higgs h^0 must be, at the tree level, lighter than the Z boson and that the loop corrections shift this stringent upper bound up to about 130 GeV. Extending the MSSM gauge group in a…

High Energy Physics - Phenomenology · Physics 2015-05-30 Martin Hirsch , Michal Malinsky , Werner Porod , Laslo Reichert , Florian Staub

In the Minimal Supersymmetric Standard Model (the MSSM), the electroweak symmetry is restored as supersymmetry-breaking terms are turned off. We describe a generic extension of the MSSM where the electroweak symmetry is broken in the…

High Energy Physics - Phenomenology · Physics 2009-02-20 Puneet Batra , Eduardo Ponton

This study investigates the lightest and second-lightest Higgs bosons at around 95 GeV (which is only a hypothetical scenario) and 125 GeV respectively within the CP-violating next to minimum B-L supersymmetric model(NB-LSSM). In the…

High Energy Physics - Phenomenology · Physics 2026-03-09 Xing-Xing Dong , Wen-Hui Zhang , Cai Guo , Shu-Min Zhao , Tai-Fu Feng

The discovery of the Higgs boson is both a milestone achievement for the Standard Model and an exciting probe of new physics beyond the SM. One of the most important properties of the Higgs is its mass, a number that has proven to be highly…

High Energy Physics - Phenomenology · Physics 2017-02-23 Patrick Draper , Heidi Rzehak

We show that the low energy limit of the minimal supersymmetric Left-Right models is the supersymmetric standard model with an exact R-parity. The theory predicts a number of light Higgs scalars and fermions with masses much below the $B-L$…

High Energy Physics - Phenomenology · Physics 2011-02-09 Charanjit S. Aulakh , Alejandra Melfo , Andrija Rasin , Goran Senjanovic

The status of the Higgs boson mass in the Standard Model and its supersymmetric extensions is reviewed and the perspectives of Higgs searches are discussed. The parameter space of the Minimal Supersymmetric Standard Model (MSSM) is analysed…

High Energy Physics - Phenomenology · Physics 2009-11-19 D. I. Kazakov

One loop mediated charged Higgs bosons decays $H^\pm\to W^\pm V$, $V= Z, \gamma$ are studied in the Minimal Supersymmetric Standard Model (MSSM) with and without CP violating phases. We evaluate the MSSM contributions to these processes…

High Energy Physics - Phenomenology · Physics 2010-11-03 Abdesslam Arhrib , Rachid Benbrik , Mohamed Chabab , Wei Ting Chang , Tzu-Chiang Yuan

After reviewing briefly the upper bounds on the mass of the lightest Higgs boson in the most general unconstrained minimal supersymmetric extension of the Standard Model, we discuss various arguments which reduce the parameter space of the…

High Energy Physics - Phenomenology · Physics 2016-11-03 P. H. Chankowski , Pokorski

The Higgs sector of the Minimal Supersymmetric Model (MSSM) is a CP-conserving two-Higgs doublet model that depends, at tree-level, on two Higgs sector parameters. In order to accurately determine the phenomenological implications of this…

High Energy Physics - Phenomenology · Physics 2007-05-23 Howard E. Haber

We investigate a supersymmetric extension of the Minimal Supersymmetric Standard Model (MSSM), called the TNMSSM, containing a $SU(2)$ Higgs triplet $(\hat{T})$ of $Y=0$ hypercharge and a singlet superfields $(\hat{S})$ in the corresponding…

High Energy Physics - Phenomenology · Physics 2015-09-16 Priyotosh Bandyopadhyay , Claudio Coriano , Antonio Costantini

The di-photon decay channel of the lightest Higgs boson is considerd as a probe to explore CP violation in the Minimal Supersymmetric Standard Model (MSSM). The scalar/pseudo-scalar mixing is considered along with CP violation entering…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Hesselbach , S. Moretti , S. Munir , P. Poulose

Many extensions of the leptonic sector of the Minimal Supersymmetric Standard Model (MSSM) are known, most of them leading to observable flavor violating effects. It has been recently shown that the 1-loop contributions to lepton flavor…

High Energy Physics - Phenomenology · Physics 2012-07-09 H. K. Dreiner , K. Nickel , F. Staub , A. Vicente

The recent discovery of a Higgs-like boson at the LHC with a mass of 126 GeV has revived the interest in supersymmetric models, which predicted a Higgs boson mass below 130 GeV long before its discovery. We compare systematically the…

High Energy Physics - Phenomenology · Physics 2015-06-16 C. Beskidt , W. de Boer , D. I. Kazakov

We examine extensions of the MSSM with more than one generation of Higgs bosons. If one assumes that a symmetry eliminates the tree-level FCNC, then the extra scalar bosons do not acquire VEVs, do not couple to fermions and do not mix with…

High Energy Physics - Phenomenology · Physics 2009-10-31 Alfredo Aranda , Marc Sher

We present a fit to the 2012 LHC Higgs data in different supersymmetric frameworks using naturalness as a guiding principle. We consider the MSSM and its D-term and F-term extensions that can raise the tree-level Higgs mass. When adding an…

High Energy Physics - Phenomenology · Physics 2012-12-07 Raffaele Tito D'Agnolo , Eric Kuflik , Marco Zanetti

We study the implication of triviality on Higgs sector in next to minimal supersymmetric model (NMSSM) using variational field theory. It is shown that mass of the lightest Higgs boson in NMSSM has an upper bound $\sim 10\, M_W$ which is of…

High Energy Physics - Phenomenology · Physics 2015-06-25 S. R. Choudhury , Mamta , Sukanta Dutta

We present some phenomenology of the Higgs sector of the Minimal $B-L$ U(1) Extension of the Standard Model at the Large Hadron Collider. In this model, the existence of an extra gauge boson ($Z'$) and an extra scalar (heavy Higgs) are…

High Energy Physics - Phenomenology · Physics 2011-01-03 L. Basso , A. Belyaev , S. Moretti , G. M. Pruna

We study an extension of the Higgs sector of the Minimal Supersymmetric Standard Model (MSSM), considering the effects of new degrees of freedom at the TeV scale, and allowing for sources of CP violation beyond the MSSM (BMSSM). We analyze…

High Energy Physics - Phenomenology · Physics 2011-11-22 Wolfgang Altmannshofer , Marcela Carena , Stefania Gori , Alejandro de la Puente

In the Next-to-Minimal Supersymmetric Standard Model (NMSSM) a variety of parameter configurations yields a Higgs boson consistent with the one observed at the LHC. Additionally, the Higgs sector of the model can contain explicit…

High Energy Physics - Phenomenology · Physics 2014-05-15 Shoaib Munir

The discovery of a 125 GeV Higgs boson and rising lower bounds on the masses of superpartners have lead to concerns that supersymmetric models are now fine tuned. Large stop masses, required for a 125 GeV Higgs, feed into the electroweak…

High Energy Physics - Phenomenology · Physics 2015-07-23 P. Athron , D. Harries , A. G. Williams