English
Related papers

Related papers: The MSSM with decoupled scalars at the LHC

200 papers

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

The allowed standard model Higgs mass range has been reduced to a region between 114 and 130 GeV or above 500 GeV, at the 99% confidence level, since the Large Hadron Collider (LHC) program started. Furthermore some of the experiments at…

High Energy Physics - Phenomenology · Physics 2012-03-20 Mads T. Frandsen , Francesco Sannino

In the present work we search for renormalization group invariant relations among the various massless and massive parameters of the Minimal Supersymmetric Standard Model. We find that indeed several of the previously free parameters of the…

High Energy Physics - Phenomenology · Physics 2018-09-26 S. Heinemeyer , M. Mondragon , N. Tracas , G. Zoupanos

In this paper, six SUSY scenarios with heavy sfermions, mainly based on theoretical arguments and on experimental indications for new physics, are defined. These scenarios, consistent with the amount of dark matter (DM) measured by WMAP,…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Berggren , F. Richard , Z. Zhang

The extraction of the parameters of the supersymmetric Lagrangian is discusse d. Particular emphasis is put on the rigorous treatment of experimental and theo retical errors. While the LHC can provide a valuable first estimate of the…

High Energy Physics - Phenomenology · Physics 2009-02-02 Dirk Zerwas

A multitude of searches have already been performed by the ATLAS and CMS collaborations at the LHC to probe the heavy Higgses of the Minimal Supersymmetric Standard Model (MSSM) through their decay to the Standard Model particles. In this…

High Energy Physics - Phenomenology · Physics 2016-10-26 Rahool K. Barman , Biplob Bhattacherjee , Amit Chakraborty , Arghya Choudhury

Constraints from searches for squarks and gluinos at the LHC at sqrt{s}=8 TeV are applied to the parameter space of the NMSSM with universal squark/slepton and gaugino masses at the GUT scale, but allowing for non-universal soft Higgs mass…

High Energy Physics - Phenomenology · Physics 2015-06-12 Debottam Das , Ulrich Ellwanger , Ana M. Teixeira

We present the first analysis of the p19MSSM with neutralino dark matter, in light of 13 TeV LHC data with an integrated luminosity of ~14/fb. We recast twelve experimental analyses performed by the ATLAS collaboration and derive exclusion…

High Energy Physics - Phenomenology · Physics 2017-01-10 Kamila Kowalska

We investigate the constraints on Supersymmetry arising from available precision measurements using a global fit approach. When interpreted within minimal supergravity (mSUGRA), the data provide significant constraints on the masses of…

High Energy Physics - Phenomenology · Physics 2014-11-20 P. Bechtle , K. Desch , M. Uhlenbrock , P. Wienemann

We analyse the implications of light charginos on the Higgs boson signal strength via gluon-gluon fusion and di-photon decay in the Minimal Supersymmetric Standard Model (MSSM) at the Large Hadron Collider (LHC). We show that enhancements…

High Energy Physics - Phenomenology · Physics 2015-06-18 M. Hemeda , S. Khalil , S. Moretti

In some supersymmetric models like split supersymmetry or models with non-universal gaugino mass, bino (LSP) and winos (NLSP) may have rather small mass splitting in order to provide the correct dark matter relic density through bino/wino…

High Energy Physics - Phenomenology · Physics 2015-04-01 Chengcheng Han , Lei Wu , Jin Min Yang , Mengchao Zhang , Yang Zhang

We have analyzed the prospect of probing a non-universal gaugino mass model of mixed bino-higgsino dark matter at the current 7 TeV run of LHC. It provides cosmologically compatible dark matter relic density over two broad bands of…

High Energy Physics - Phenomenology · Physics 2015-03-13 Monoranjan Guchait , D. P. Roy , Dipan Sengupta

We show that the interplay between the LHC and the e^+ e^- International Linear Collider (ILC) with sqrt{s}=500 GeV might be crucial for the discrimination between the minimal and next-to-minimal supersymmetric standard model. We present an…

High Energy Physics - Phenomenology · Physics 2009-11-11 G. Moortgat-Pick , S. Hesselbach , F. Franke , H. Fraas

We perform a comprehensive exploration of the Constrained MSSM parameters using a Markov Chain Monte Carlo technique and a Bayesian analysis. We compute superpartner masses and other collider observables as well as a cold dark matter…

High Energy Physics - Phenomenology · Physics 2010-04-06 Roberto Ruiz de Austri , Roberto Trotta , Leszek Roszkowski

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

We present a focused study of a predictive unified model whose measurable consequences are immediately relevant to early discovery prospects of supersymmetry at the LHC. ATLAS and CMS have released their analysis with 35~pb$^{-1}$ of data…

High Energy Physics - Phenomenology · Physics 2011-07-28 Daniel Feldman , Katherine Freese , Pran Nath , Brent D. Nelson , Gregory Peim

To increase the predictivity of the Minimal Supersymmetric Standard Model (MSSM), one needs to go to an underlying, more fundamental theory, where at least some of the many MSSM parameters can be determined by symmetries or by dynamics.…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Zwirner

The parameter space of the phenomenological MSSM (pMSSM) is explored by means of Markov Chain Monte Charlo (MCMC) methods, taking into account the latest LHC results on the Higgs signal at 125 GeV in addition to relevant low-energy…

High Energy Physics - Phenomenology · Physics 2014-03-26 Beranger Dumont , John F. Gunion , Sabine Kraml

The long awaited discovery of a new light scalar at the LHC opens up a new era of studies of the Higgs sector in the SM and its extensions. In this paper we discuss the consequences of the observation of a light Higgs boson with the mass…

High Energy Physics - Phenomenology · Physics 2012-10-02 Alexandre Arbey , Marco Battaglia , Abdelhak Djouadi , Farvah Mahmoudi

The latest experimental results from the LHC and dark matter (DM) searches suggest that the parameter space allowed in supersymmetric theories is subject to strong reductions. These bounds are especially constraining for scenarios entailing…

High Energy Physics - Phenomenology · Physics 2017-05-04 M. Peiro , S. Robles