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We use the most recent data on the Higgs-like resonance h observed at 125 GeV to derive information about the mass of the heavier Higgs particles predicted by Minimal Supersymmetry. We treat as independent parameters the couplings of h to…

High Energy Physics - Phenomenology · Physics 2015-06-11 L. Maiani , A. D. Polosa , V. Riquer

In the standard model, the requirements of vacuum stability and the validity of perturbation theory up to the unification scale force the mass of the Higgs boson to be approximately between 130 GeV and 180 GeV. We re-examine these…

High Energy Physics - Phenomenology · Physics 2009-10-31 Shuquan Nie , Marc Sher

We examine the prospects of detecting the light Higgs h^0 of the Constrained MSSM at the Tevatron. To this end we explore the CMSSM parameter space with \mu>0, using a Markov Chain Monte Carlo technique, and apply all relevant collider and…

High Energy Physics - Phenomenology · Physics 2010-10-27 Leszek Roszkowski , Roberto Ruiz de Austri , Roberto Trotta

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

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 boson of Standard Model, minimally coupled to the gravitation, is not able to produce the inflation of early Universe if its mass exceeds the threshold value, which is equal to m_H^{min} = 142 GeV in the tree approximation for the…

High Energy Physics - Theory · Physics 2015-05-27 V. V. Kiselev , S. A. Timofeev

We present the predictions for the mass $M_h$ of the lightest Higgs boson in models with gauge-mediated supersymmetry breaking as a function of the SUSY-breaking scale. We include all radiative corrections up to two loops and point out that…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Riotto , O. Tornkvist , R. N. Mohapatra

The minimal supersymmetric standard model leads to precise predictions of the properties of the light Higgs boson degrees of freedom that depend on only a few relevant supersymmetry breaking parameters. In particular, there is an upper…

High Energy Physics - Phenomenology · Physics 2015-10-28 Gabriel Lee , Carlos E. M. Wagner

In the unified subquark model of all fundamental particles and forces, the mass of the Higgs boson in the standard model of electroweak interactions ($m_H$) is predicted to be about $2\sqrt{6}m_W/3$ (where $m_W$ is the mass of the charged…

High Energy Physics - Phenomenology · Physics 2015-06-18 Hidezumi Terazawa , Masaki Yasue

We show that the standard-model Higgs boson mass m_h is correlated with the spectral index of density perturbation n_s in the inflation scenario with the inflaton being identified with the B-L Higgs boson. The Higgs boson mass ranges from…

High Energy Physics - Phenomenology · Physics 2015-05-30 Kazunori Nakayama , Fuminobu Takahashi

We investigate a class of theories where the mass of the lightest Higgs boson of the Minimal Supersymmetric Standard Model (MSSM) can be larger than the Z gauge boson mass at tree level. In this context the MSSM fields feel a new force,…

High Energy Physics - Phenomenology · Physics 2014-05-14 Pavel Fileviez Perez , Sogee Spinner

We examine the current lower bound on the charged Higgs boson mass in the Minimal Supersymmetric Standard Model. By applying direct search constraints on the neutral Higgs bosons and other supersymmetric states, as well as a number of…

High Energy Physics - Phenomenology · Physics 2009-01-22 Brian Dudley , Christopher Kolda

The data collected by the OPAL experiment at sqrts=183 GeV were used to search for Higgs bosons which are predicted by the Standard Model and various extensions, such as general models with two Higgs field doublets and the Minimal…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL Collaboration , G. Abbiendi et al

We calculate to a few percent precision the Higgs potential in a model with supersymmetry broken by boundary conditions on an extra-dimension, compactified to a segment of length $L$, and a top quark quasi-localized on one of the two…

High Energy Physics - Phenomenology · Physics 2014-11-17 Riccardo Barbieri , Guido Marandella , Michele Papucci

Motivated by the recent LHC hints of a Higgs boson around 125 GeV, we assume a SM-like Higgs with the mass 123-127 GeV and study its implication in low energy SUSY by comparing the MSSM and NMSSM. We consider various experimental…

High Energy Physics - Phenomenology · Physics 2015-06-04 Junjie Cao , Zhaoxia Heng , Jin Min Yang , Yanming Zhang , Jingya Zhu

The Substandard theory deals with the standard model of leptons, electro-weak gauge bosons and Higgs, excluding the chromodynamics of quarks. The theory gives a geometric and algebraic interpretation of its U(2) symmetry based on the…

High Energy Physics - Theory · Physics 2007-05-23 E. L. Schucking

In the standard model, a lower bound to the Higgs mass (for a given top quark mass) exists if one requires that the standard model vacuum be stable. This bound is calculated as precisely as possible, including the most recent values of the…

High Energy Physics - Phenomenology · Physics 2009-10-22 Marc Sher

The implications of the discovery of a scalar Higgs boson at the LHC with a mass of approximately 125 GeV are summarised in the context of the Standard Model of particle physics with its unique scalar boson and of its most celebrated new…

High Energy Physics - Phenomenology · Physics 2015-05-06 Abdelhak Djouadi

We interpret reported hints of a Standard Model Higgs boson at ~ 125 GeV in terms of high-scale supersymmetry breaking with a shift symmetry in the Higgs sector. More specifically, the Higgs mass range suggested by recent LHC data…

High Energy Physics - Theory · Physics 2015-06-04 Arthur Hebecker , Alexander K. Knochel , Timo Weigand

We assume the vanishing of the quadratic divergences in the $SU(2)_L \otimes U(1)$ electroweak theory. Using $\,$ the $\,$ top $\,$ mass $\,$ value reported recently by the CDF Collaboration $m_t = 176 \pm 8 \pm 10 GeV$, we predict the mass…

High Energy Physics - Phenomenology · Physics 2015-06-25 G. López Castro , J. Pestieau