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We examine here the constraints from the amount of relic density of neutralino dark matter and other experiments have on the SUSY parameter space for the mSUGRA model and for models with non-universal soft breaking at the GUT scale. In…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Arnowitt , B. Dutta

We present new global fits of the cMSSM, including LHC 1/fb integrated luminosity SUSY exclusion limits, recent LHC 5/fb constraints on the mass of the Higgs boson and XENON100 direct detection data. Our analysis fully takes into account…

High Energy Physics - Phenomenology · Physics 2015-06-03 C. Strege , G. Bertone , D. G. Cerdeno , M. Fornasa , R. Ruiz de Austri , R. Trotta

We update and extend to larger masses our previous analysis of the MSSM with minimal $SO_{10}$ [MSO$_{10}$SM] soft SUSY breaking boundary conditions. We find a well--defined, narrow region of parameter space which provides the observed…

High Energy Physics - Phenomenology · Physics 2011-08-23 R. Dermisek , S. Raby , L. Roszkowski , R. Ruiz de Austri

Recently, WMAP has measured the cosmological parameters to a much greater accuracy. We analyze the implications of this more precise measurement for supersymmetric dark matter and for the direct detection of supersymmetry at accelerators.…

High Energy Physics - Phenomenology · Physics 2008-11-26 Utpal Chattopadhyay , Achille Corsetti , Pran Nath

The requirement that SUSY should solve the hierarchy problem without undue fine-tuning imposes severe constraints on the new supersymmetric states. With the MSSM spectrum and soft SUSY breaking originating from universal scalar and gaugino…

High Energy Physics - Phenomenology · Physics 2015-05-27 S. Cassel , D. M. Ghilencea , S. Kraml , A. Lessa , G. G. Ross

We perform a comparative study of the neutralino dark matter scattering on nucleon in three popular supersymmetric models: the minimal (MSSM), the next-to-minimal (NMSSM) and the nearly minimal (nMSSM). First, we give the predictions of the…

High Energy Physics - Phenomenology · Physics 2010-07-14 Junjie Cao , Ken-ichi Hikasa , Wenyu Wang , Jin Min Yang , Li-Xin Yu

Assuming the lightest neutralino solely composes the cosmic dark matter, we examine the constraints of the CDMS-II and XENON100 dark matter direct searches on the parameter space of the MSSM Higgs sector. We find that the current…

High Energy Physics - Phenomenology · Physics 2010-09-10 Junjie Cao , Ken-ichi Hikasa , Wenyu Wang , Jin Min Yang , Li-Xin Yu

We study the direct detection rate for SUSY cold dark matter (CDM) predicted by the minimal supersymmetric standard model with universal boundary conditions and large values for tan(beta). The relic abundance of the lightest supersymmetric…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. E. Gomez , J. D. Vergados

Direct detection experiments for neutralino dark matter in the Milky Way are examined within the framework of SUGRA models with R-parity invariance and grand unification at the GUT scale, M_G. Models of this type apply to a large number of…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Arnowitt , B. Dutta , Y. Santoso

CMSSM boundary conditions are usually used when calculating cosmological dark matter densities. In this paper we calculate the cosmological density of dark matter in the MSSM using minimal $SO_{10}$ soft SUSY breaking boundary conditions.…

High Energy Physics - Phenomenology · Physics 2011-03-23 R. Dermisek , S. Raby , L. Roszkowski , R. Ruiz de Austri

We have recently examined a large number of points in the parameter space of the phenomenological MSSM, the 19-dimensional parameter space of the CP-conserving MSSM with Minimal Flavor Violation. We determined whether each of these points…

High Energy Physics - Phenomenology · Physics 2014-11-18 R. C. Cotta , J. S. Gainer , J. L. Hewett , T. G. Rizzo

The prediction for the Higgs mass in the dark matter selected high-scale SUSY is explored. We show the bounds on SUSY-breaking scale in models of SM $+\tilde{w}$ and SM $+\tilde{h}/\tilde{s}$ due to the observed Higgs mass at the LHC. We…

High Energy Physics - Phenomenology · Physics 2015-03-13 Sibo Zheng

We perform global fits to the parameters of the Constrained Minimal Supersymmetric Standard Model (CMSSM) and to a variant with non-universal Higgs masses (NUHM1). In addition to constraints from low-energy precision observables and the…

We present a flexible framework for interpretation of SUSY sensitivity studies for future colliders in terms of the phenomenological minimal supersymmetric standard model (pMSSM). We perform a grand scan of the pMSSM 19-dimensional…

We investigate the viability of light neutralino scenarios as promoted by dark matter direct detection experiments. Using high statistics scans in the pMSSM we have identified several scenarios which give rise to very light neutralinos with…

High Energy Physics - Phenomenology · Physics 2012-10-08 A. Arbey , M. Battaglia , F. Mahmoudi

We review the phenomenology of SUSY dark matter in various versions of MSSM, with universal and nonuniversal gaugino masses at the GUT scale. We start with the universal case (CMSSM), where the cosmologically compatible dark matter relic…

High Energy Physics - Phenomenology · Physics 2017-05-24 D. P. Roy

The requirement of electroweak naturalness in supersymmetric (SUSY) models of particle physics necessitates light higgsinos not too far from the weak scale characterized by m(weak)~ m(W,Z,h)~100 GeV. On the other hand, LHC Higgs mass…

High Energy Physics - Phenomenology · Physics 2018-11-14 Howard Baer , Vernon Barger , Dibyashree Sengupta , Xerxes Tata

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

We review the result of SUSY parameter fits based on frequentist analyses of experimental constraints from electroweak precision data, (g-2)_mu, B-physics and cosmological data. We investigate the parameters of the constrained MSSM (CMSSM)…

High Energy Physics - Phenomenology · Physics 2010-12-13 S. Heinemeyer , G. Weiglein

We estimate the bounds on Higgs and sparticle masses and discuss their correlations in the constrained minimal supersymmetric standard model (CMSSM). In our analysis we have applied the present constraints from collider and low energy…

High Energy Physics - Phenomenology · Physics 2011-11-10 Alexander Belyaev , Shahida Dar , Ilia Gogoladze , Azar Mustafayev , Qaisar Shafi