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The upper bound on the mass of the light CP-even Higgs boson of the minimal supersymmetric model (MSSM) depends on the supersymmetric particle spectrum via radiative loop effects. At present, complete one-loop results and partial two-loop…

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

In the Minimal Supersymmetric Standard Model (MSSM) the mass of the lightest neutral Higgs boson is determined by the supersymmetric parameters. In the $m_h$MSSM the precisely measured Higgs boson replaces the trilinear coupling $A_t$ as…

High Energy Physics - Phenomenology · Physics 2022-08-02 Rima El-Kosseifi , Jean-Loic Kneur , Gilbert Moultaka , Dirk Zerwas

A brief overview of Higgs physics and of supersymmetry is given. The central theme of the overview is to explore the implications of the recent discovery of a Higgs like particle regarding the prospects for the discovery of supersymmetry…

High Energy Physics - Phenomenology · Physics 2015-06-11 Pran Nath

We discuss effective models derived from a supersymmetric model whose mediation mechanism of supersymmetry (SUSY) breaking is namely mirage mediation. In this model, light higgsino mass, that is required by the natural realization of the…

High Energy Physics - Phenomenology · Physics 2018-01-17 Junichiro Kawamura , Yuji Omura

The recent WMAP data provide a rather restricted range of the Cold Dark Matter (CDM) density $ \Omega_{CDM} h^2 $ of unprecedented accuracy. We combine these new data along with data from BNL E821 experiment measuring $ {(g_{\mu}-2)}$, $…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. B. Lahanas , D. V. Nanopoulos

Vacuum stability and metastability imply lower limits on the mass of the higgs boson in the Standard Model (SM). In contrast, we present an improved calculation of an upper limit on the lightest higgs mass in supersymmetric (susy) models,…

High Energy Physics - Phenomenology · Physics 2009-10-28 Marco A. Diaz , Tonnis A. ter Veldhuis , Thomas J. Weiler

Precision electroweak data presently favors a weakly-coupled Higgs sector as the mechanism responsible for electroweak symmetry breaking. Low-energy supersymmetry provides a natural framework for weakly-coupled elementary scalars. In this…

High Energy Physics - Phenomenology · Physics 2008-11-26 Marcela Carena , Howard E. Haber

In view of lack of the direct experimental evidence for a Beyond the Standard Model (BSM) physics, accommodating a SM-like Higgs boson is on the most important constraints that a BSM model must fulfill. Already for some time the…

High Energy Physics - Phenomenology · Physics 2024-04-19 Jan Kalinowski , Wojciech Kotlarski

Benchmarks for beyond the Standard Model (BSM) searches are mostly constructed around particular features of interest related to the experiment under consideration without giving due address to the results from other experiments. In this…

High Energy Physics - Phenomenology · Physics 2024-12-04 S. AbdusSalam , S. S. Barzani , M. Mohammadidoust , S. A. Ojaghi , L. Velasco-Sevilla

R-symmetry is a fundamental symmetry which can solve the SUSY flavor problem and relax the search limits on SUSY masses. Here we provide a complete next-to-leading order computation and discussion of the lightest Higgs boson mass, the W…

High Energy Physics - Phenomenology · Physics 2014-12-24 Philip Diessner , Jan Kalinowski , Wojciech Kotlarski , Dominik Stöckinger

The discovery of a Higgs boson at the electroweak scale appears to point toward supersymmetry, as the most likely mechanism for protecting a scalar boson mass from enormous radiative corrections. The earlier discovery of neutrino masses…

High Energy Physics - Theory · Physics 2022-03-22 Roland E. Allen

We present a short review of the LHC results at 7 TeV and their implications on the Standard Model (SM) and on its Supersymmetric (SUSY) extension. In particular we discuss the exclusion range for the SM Higgs mass, the tantalizing hint of…

High Energy Physics - Phenomenology · Physics 2012-06-08 Guido Altarelli

In the CMSSM we find preferences for sparticle masses that are relatively light. In the NUHM1 the best-fit values for many sparticle masses are even slightly smaller, but with greater uncertainties. We find that at the 95% C.L. all colored…

High Energy Physics - Phenomenology · Physics 2011-06-16 S. Heinemeyer

Until recently precision electroweak computations were fundamentally uncertain due to lack of knowledge about the existence of the Standard Model Higgs boson and its mass. For this reason substantial calculational machinery had to be…

High Energy Physics - Phenomenology · Physics 2014-08-13 James D. Wells , Zhengkang Zhang

We perform a complete analysis of the supersymmetric particle spectrum in the Minimal Supergravity (mSUGRA) model where the soft SUSY breaking scalar masses, gaugino masses and trilinear couplings are unified at the GUT scale, so that the…

High Energy Physics - Phenomenology · Physics 2010-02-03 A. Djouadi , M. Drees , J. L. Kneur

In this work, we study the impact of electroweak and Higgs precision measurements at future electron-positron colliders on several typical supersymmetric models, including the Constrained Minimal Supersymmetric Standard Model (CMSSM),…

High Energy Physics - Phenomenology · Physics 2022-06-24 Peter Athron , Csaba Balazs , Andrew Fowlie , Huifang Lv , Wei Su , Lei Wu , Jin Min Yang , Yang Zhang

We review results from our 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…

High Energy Physics - Phenomenology · Physics 2016-02-26 S. Heinemeyer

Motivated by the ATLAS and CMS discovery of a Higgs-like boson with a mass around 125 GeV, and by the need of explaining neutrino masses, we analyse the three canonical SUSY versions of the seesaw mechanism (type I, II and III) with CMSSM…

High Energy Physics - Phenomenology · Physics 2015-06-05 M. Hirsch , F. R. Joaquim , A. Vicente

A special class of supersymmetric U(1) gauge extensions of the standard model was proposed in 2002. It is anomaly-free, has no mu term, and conserves baryon and lepton numbers automatically. It also allows the lightest Higgs boson to have a…

High Energy Physics - Phenomenology · Physics 2015-05-30 Ernest Ma

We reexamine the constrained version of the Next-to-Minimal Supersymmetric Standard Model with semi universal parameters at the GUT scale (CNMSSM). We include constraints from collider searches for Higgs and SUSY particles, upper bound on…

High Energy Physics - Phenomenology · Physics 2009-01-16 G. Belanger , C. Hugonie , A. Pukhov