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Related papers: SUSY dark matter with non-universal gaugino masses

200 papers

We study supersymmetric scenarios where the dark matter is the gaugino of an unbroken hidden U(1) which interacts with the visible world only via a small kinetic mixing with the hypercharge. Strong constraints on the parameter space can be…

High Energy Physics - Phenomenology · Physics 2009-02-12 A. Ibarra , A. Ringwald , C. Weniger

We examine the possibilities for constructing models with Dirac gaugino masses and unification of gauge couplings. We identify one promising model, and discuss to what extent it can have a "natural SUSY" spectrum. We then determine the…

High Energy Physics - Phenomenology · Physics 2014-08-20 K. Benakli , M. Goodsell , F. Staub , W. Porod

We study supersymmetric scenarios in which the gluino is the next-to-lightest supersymmetric particle (NLSP), with a mass sufficiently close to that of the lightest supersymmetric particle (LSP) that gluino coannihilation becomes important.…

High Energy Physics - Phenomenology · Physics 2016-03-23 John Ellis , Jason L. Evans , Feng Luo , Keith A. Olive

We consider the possibility that the recently reported events at the CDMS-II direct dark matter detection experiment are the result of coherent scattering of supersymmetric neutralinos. In such a scenario we argue that non-universal soft…

High Energy Physics - Phenomenology · Physics 2010-05-28 Michael Holmes , Brent D. Nelson

We set an upper limit on the mass of a supersymmetric neutralino dark matter particle using the MicrOMEGAS and DarkSUSY software packages and the most recent constraints on relic density from combined WMAP and SDSS data. We explore several…

High Energy Physics - Phenomenology · Physics 2008-11-26 Rudy C. Gilmore

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

Besides Standard Model measurements and other Beyond Standard Model studies, the ATLAS and CMS experiments at the LHC will search for Supersymmetry, one of the most attractive explanation for dark matter. The SUSY discovery potential with…

High Energy Physics - Phenomenology · Physics 2012-01-06 Vasiliki A. Mitsou

We address the question of how light can be the lightest supersymmetric particle neutralino to be a reliable cold dark matter (CDM) particle candidate. To this end we have performed a combined analysis of the parameter space of the Minimal…

High Energy Physics - Phenomenology · Physics 2009-10-28 V. A. Bednyakov , S. G. Kovalenko , H. V. Klapdor-Kleingrothaus

We extend previous analyses on the interplay between nonuniversalities in the gaugino mass sector and the thermal relic densities of LSP neutralinos, in particular to the case of moderate to large tan beta. We introduce a set of parameters…

High Energy Physics - Phenomenology · Physics 2014-11-17 Andreas Birkedal-Hansen , Brent D. Nelson

Theories of dark matter that support bound states are an intriguing possibility for the identity of the missing mass of the Universe. This article proposes a class of models of supersymmetric composite dark matter where the interactions…

High Energy Physics - Phenomenology · Physics 2011-09-08 Siavosh R. Behbahani , Martin Jankowiak , Tomas Rube , Jay G. Wacker

The ATLAS and CMS experiments did not find evidence for Supersymmetry using close to 5/fb of published LHC data at a center-of-mass energy of 7 TeV. We combine these LHC data with data on B_s -> mu mu (LHCb experiment), the relic density…

High Energy Physics - Phenomenology · Physics 2012-10-08 C. Beskidt , W. de Boer , D. I. Kazakov , F. Ratnikov

We examine a well motivated non-universal supergravity model where the Higgs boson masses are not unified with the other scalars at the grand unified scale at the LHC. The dark matter content can easily be satisfied in this model by having…

High Energy Physics - Phenomenology · Physics 2010-12-23 Bhaskar Dutta , Teruki Kamon , Abram Krislock , Nikolay Kolev , Youngdo Oh

In the Supersymmetric extension of the Standard Model with minimal particle content the three neutrinos can have non trivial masses and mixings, generated at 1 loop due to renormalizable lepton number violating interactions. We show that…

High Energy Physics - Phenomenology · Physics 2009-09-25 D. Tommasini

The cosmological significance of the neutralino sector is studied for a class of models in which electroweak symmetry breaking is seeded by a gauge singlet. Extensive use is made of the renormalisation group equations to significantly…

High Energy Physics - Phenomenology · Physics 2011-02-16 S. A. Abel , S. Sarkar , I. B. Whittingham

We review the results on the investigation of the LHC(CMS) SUSY discovery potential for the case of nonuniversal gaugino and squark masses.

High Energy Physics - Phenomenology · Physics 2007-05-23 S. I. Bityukov , N. V. Krasnikov

We study phenomenological aspects of supersymmetric SU(5) grand unified theories with non-universal gaugino masses. For large tan beta, we investigate constraints from the requirement of successful electroweak symmetry breaking, the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Katri Huitu , Yoshiharu Kawamura , Tatsuo Kobayashi , Kai Puolamaki

We review the current best fit values of Higgs boson masses in the Standard Model (SM) and its minimal supersymmetric extension (MSSM) obtained from existing experimental data. We also review the parameters space of the constrained MSSM…

High Energy Physics - Phenomenology · Physics 2009-06-26 S. Heinemeyer

We perform a multichannel analysis in context of the Large Hadron Collider (LHC) for supersymmetric (SUSY) theories with high-scale non-universal gaugino masses arising from different non-singlet representations of SU(5) and SO(10) gauge…

High Energy Physics - Phenomenology · Physics 2009-02-02 Subhaditya Bhattacharya

We show some phenomenological implications for the dark matter problem of a class of models with deflected anomaly mediated supersymmetry breaking in the context of the MSSM. This scenario can be naturally embedded in a brane world model…

High Energy Physics - Phenomenology · Physics 2017-08-23 Andrea M. Lionetto

We discuss constraints on supersymmetric models arising from the relic density measurements of WMAP as well as from direct and precision measurements, LEP, b-sgamma, g-2, Bs-mumu. We consider mSUGRA models and their extensions with…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Belanger , F. Boudjema , A. Cottrant , A. Pukhov , A. Semenov