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We study how the kinetic decoupling of dark matter (DM) within a minimal supersymmetric extension of the standard model, by adopting nine independent parameters (MSSM-9), could improve our knowledge of the properties of the DM protohalos.…

High Energy Physics - Phenomenology · Physics 2015-10-08 Roberta Diamanti , Maria Eugenia Cabrera Catalan , Shin'ichiro Ando

We study theoretical implications of direct dark matter searches in the minimal supersymmetric standard model (MSSM). We assume that no accidental cancellations occur in the spin-independent elastic neutralino-quark scattering cross…

High Energy Physics - Phenomenology · Physics 2015-05-28 Maxim Perelstein , Bibhushan Shakya

Higgsinos and Wino have strong motivations for being Dark Matter (DM) candidates in supersymmetry, but their annihilation cross sections are quite large. For thermal generation and a single component DM setup the higgsinos or wino may have…

High Energy Physics - Phenomenology · Physics 2017-10-25 Manimala Chakraborti , Utpal Chattopadhyay , Sujoy Poddar

We study the direct detection rate for SUSY cold dark m atter (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 2007-05-23 M. E. Gomez , J. D. Vergados

The Standard Model of particle physics has been strengthened by the recent discovery of the long-awaited Higgs boson. The standard cosmological model has met the challenge of the high precision observations in cosmology and astroparticle…

High Energy Physics - Phenomenology · Physics 2013-12-03 Jonathan Da Silva

We performed a combined analysis of the parameter space of the Minimal Supersymmetric Standard Model (MSSM) taking into account cosmological and accelerator constraints including those from the radiative $b\rightarrow s\gamma$ decay…

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

This paper provides an overview of supersymmetry (SUSY) and the ongoing efforts to detect SUSY particles at the Large Hadron Collider (LHC). SUSY proposes corresponding "sparticles" for each Standard Model particle, with the potential to…

High Energy Physics - Experiment · Physics 2024-04-29 Sophie Kadan

We address the direct detection of neutralino dark matter in the framework of the Next-to-Minimal Supersymmetric Standard Model. We conduct a detailed analysis of the parameter space, taking into account all the available constraints from…

High Energy Physics - Phenomenology · Physics 2016-11-03 Ana M. Teixeira

In recent years the search for dark matter has intensified with competitive bounds coming from collider searches, direct detection, and indirect detection. Collider searches at the Large Hadron Collider (LHC) lack the necessary…

High Energy Physics - Phenomenology · Physics 2014-09-08 Matthew Low , Lian-Tao Wang

Where is the long--awaited one? A supersymmetric neutralino has been a favored candidate for the WIMP dark matter but, so far, it has not been found. One way to locate it is to identify where it can be hiding in the vast supersymmetric…

High Energy Physics - Phenomenology · Physics 2007-05-23 Leszek Roszkowski

Neutralino dark matter is generally assumed to be relatively heavy, with a mass near the electroweak scale. This does not necessarily need to be the case, however. In the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and other…

High Energy Physics - Phenomenology · Physics 2008-11-26 John F. Gunion , Dan Hooper , Bob McElrath

We discuss the possibilities for the direct detection of neutralino dark matter via elastic scattering in variants of the minimal supersymmetric extension of the Standard Model (MSSM) with non-universal supersymmetry-breaking contributions…

High Energy Physics - Phenomenology · Physics 2010-04-28 John Ellis , Keith A. Olive , Pearl Sandick

We investigate multi-lepton LHC signals arising from an extension at the grand unification scale of the standard minimal supersymmetric model (MSSM) involving right-handed neutrino superfields. In this framework neutrinos have Dirac masses…

High Energy Physics - Phenomenology · Physics 2015-06-18 Chiara Arina , Maria Eugenia Cabrera

In gravity-mediated SUSY breaking models with non-universal gaugino masses, lowering the SU(3) gaugino mass |M_3| leads to a reduction in the squark and gluino masses. Lower third generation squark masses, in turn, diminish the effect of a…

High Energy Physics - Phenomenology · Physics 2011-08-11 Howard Baer , Azar Mustafayev , Eun-Kyung Park , Stefano Profumo , Xerxes Tata

We investigate the capability of directional detectors to probe neutralino dark matter in the Minimal Supersymmetric Standard Model and the Next-to-Minimal Supersymmetric Standard Model with parameters defined at the weak scale. We show…

High Energy Physics - Phenomenology · Physics 2012-04-12 D. Albornoz Vásquez , G. Bélanger , J. Billard , F. Mayet

We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks, leptons and LSP in models with effective supersymmetry where third generation of squarks is relatively light while the first two generations…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. I. Bityukov , N. V. Krasnikov

Three dark matter direct detection experiments, DAMA, COGENT and CRESST, have reported a possible signal of WIMP interaction corresponding to very light particles, close to the edge of the XENON 100 and CDMS sensitivity. Imposing the latest…

High Energy Physics - Phenomenology · Physics 2012-11-13 F. Mahmoudi , A. Arbey , M. Battaglia

It is an appealing possibility that the observed dark matter density in the universe can be fully explained by SUSY. The current experimental knowledge indicates that this possibility strongly favors a co-annihilation scenario. In such…

High Energy Physics - Phenomenology · Physics 2016-11-15 Mikael Berggren

The existence of dark matter was suggested, using simple gravitational arguments, seventy years ago. Although we are now convinced that most of the mass in the Universe is indeed some non-luminous matter, we still do not know its…

High Energy Physics - Phenomenology · Physics 2009-11-10 Carlos Munoz

Supersymmetric grand unified theories based on the gauge group SO(10) are highly motivated. In the simplest models, one expects t-b-\tau Yukawa coupling unification, in addition to gauge, matter and Higgs unification. Yukawa unification…

High Energy Physics - Phenomenology · Physics 2015-05-18 Howard Baer