English
Related papers

Related papers: Constraining the MSSM with universal gaugino masse…

200 papers

We explore the full parameter space of Minimal Supergravity (mSUGRA), allowing all four continuous parameters (the scalar mass m_0, the gaugino mass m_1/2, the trilinear coupling A_0, and the ratio of Higgs vacuum expectation values tan…

High Energy Physics - Phenomenology · Physics 2011-07-19 Edward A. Baltz , Paolo Gondolo

Dark matter is examined within the ``golden region'' of the Minimal Supersymmetric Standard Model. This region satisfies experimental constraints, including a lower bound on the Higgs mass of 114 GeV, and minimizes fine-tuning of the Z…

High Energy Physics - Phenomenology · Physics 2009-03-12 Junya Kasahara , Katherine Freese , Paolo Gondolo

It is often argued that the minimal supersymmetric standard model has O(100) free parameters and the generic parameter region is already excluded by the null observation of the flavor and CP violating processes as well as the constraints…

High Energy Physics - Phenomenology · Physics 2016-12-21 Ryuichiro Kitano , Ryuji Motono , Minoru Nagai

We perform a comprehensive analysis of the Minimal Supersymmetric Standard Model (MSSM) in the scenario where the scalar partners of the fermions and the Higgs particles (except for the Standard-Model-like one) are assumed to be very heavy…

High Energy Physics - Phenomenology · Physics 2011-12-09 Nicolas Bernal , Abdelhak Djouadi , Pietro Slavich

We study the seven-dimensional Minimal Supersymmetric Standard Model (MSSM7) with the new GAMBIT software framework, with all parameters defined at the weak scale. Our analysis significantly extends previous weak-scale, phenomenological…

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 perform a comprehensive study of $SU(5)$, $SO(10)$ and $E(6)$ supersymmetric GUT models where the gaugino masses are generated through the F-term breaking vacuum expectation values of the non-singlet scalar fields. In these models the…

High Energy Physics - Phenomenology · Physics 2014-03-03 Joydeep Chakrabortty , Subhendra Mohanty , Soumya Rao

Without assuming that Higgs masses have the same values as other scalar masses at the input GUT scale, we combine constraints on the minimal supersymmetric extension of the Standard Model (MSSM) coming from the cold dark matter density with…

High Energy Physics - Phenomenology · Physics 2008-11-26 John Ellis , Keith A. Olive , Yudi Santoso

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

We determine the allowed parameter space and the particle spectra of the minimal SUSY standard model (MSSM) and nonminimal SUSY standard model (NMSSM) imposing correct electroweak gauge-symmetry breaking and recent experimental constraints.…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. Stephan

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 investigate the sensitivity of existing LHC searches to the charginos and neutralinos of the MSSM when all the other superpartners are decoupled. In this limit, the underlying parameter space reduces to a simple four-dimensional set…

High Energy Physics - Phenomenology · Physics 2015-06-22 Travis A. W. Martin , David Morrissey

We examine the low scale particle spectroscopy of an SO(10) (or equivalently SU(5)) inspired supersymmetric model with non-universal gaugino masses. The model assumes minimal supergravity and contains the same number of fundamental…

High Energy Physics - Phenomenology · Physics 2013-05-29 Nobuchika Okada , Shabbar Raza , Qaisar Shafi

The neutralino sector of the semi-constrained next-to-minimal supersymmetric standard model is explored under recent experimental constraints, with special attention to dark matter (DM) limits. The effects of the upper and lower bounds of…

High Energy Physics - Phenomenology · Physics 2021-02-02 Elham Aldufeery , Maien Binjonaid

A light singlino is a promising candidate for dark matter, and a light higgsino is natural in the parameter space of the NMSSM. We study the combined constraints on this scenario resulting from the dark matter relic density, the most recent…

High Energy Physics - Phenomenology · Physics 2018-09-26 Ulrich Ellwanger , Cyril Hugonie

We study a class of supersymmetric models with non-universal gaugino masses that could arise from F-terms in a general combination of the singlet and adjoint representations of SU(5). We explore models that satisfy present Large Hadron…

High Energy Physics - Phenomenology · Physics 2013-05-30 James E. Younkin , Stephen P. Martin

We present simplified MSSM models for light neutralinos and charginos with realistic mass spectra and realistic gaugino-higgsino mixing, that can be used in experimental searches at the LHC. The formerly used naive approach of defining mass…

High Energy Physics - Phenomenology · Physics 2018-03-20 Benjamin Fuks , Michael Klasen , Saskia Schmiemann , Marthijn Sunder

We begin a systematic study of how gaugino mass unification can be probed at the CERN Large Hadron Collider (LHC) in a quasi-model independent manner. As a first step in that direction we focus our attention on the theoretically…

High Energy Physics - Phenomenology · Physics 2010-04-15 Baris Altunkaynak , Phillip Grajek , Michael Holmes , Gordon Kane , Brent D. Nelson

We perform the first analysis of Dark Matter scenarios in a constrained model with Dirac Gauginos. The model under investigation is the Constrained Minimal Dirac Gaugino Supersymmetric Standard model (CMDGSSM) where the Majorana mass terms…

High Energy Physics - Phenomenology · Physics 2015-10-27 Mark D. Goodsell , Manuel E. Krauss , Tobias Müller , Werner Porod , Florian Staub

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
‹ Prev 1 2 3 10 Next ›