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In previous papers we showed that the data of the DAMA/NaI experiment for WIMP direct detection, which indicate a possible annual modulation effect, are widely compatible with an interpretation in terms of a relic neutralino as the major…

High Energy Physics - Phenomenology · Physics 2011-05-23 A. Bottino , F. Donato , N. Fornengo , S. Scopel

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 address the question how light the lightest MSSM neutralino can be as dark matter candidate in a scenario where all supersymmetric scalar particles are heavy. The hypothesis that the neutralino accounts for the observed dark matter…

High Energy Physics - Phenomenology · Physics 2015-06-23 Lorenzo Calibbi , Jonas M. Lindert , Toshihiko Ota , Yasutaka Takanishi

We examine the question of whether neutralinos produced at the LHC can be shown to be the particles making up the astronomically observed dark matter. If the WIMP alllowed region lies in the SUGRA coannihilation region, then a strong signal…

High Energy Physics - Phenomenology · Physics 2016-11-09 Richard Arnowitt , Adam Aurisano , Bhaskar Dutta , Teruki Kamon , Nikolay Kolev , Paul Simeon , David Toback , Peter Wagner

Neutralinos annihilating in the center of the Sun or the Earth may give rise to a detectable signal of neutrinos. We derive the indirect detection rates for neutrino telescopes in the minimal supersymmetric extension of the standard model.…

High Energy Physics - Phenomenology · Physics 2014-11-17 L. Bergstrom , J. Edsjo , P. Gondolo

One of the great attractions of minimal super-unified supersymmetric models is the prediction of a massive, stable, weakly interacting particle (the lightest supersymmetric partner, LSP) which can have the right relic abundance to be a cold…

High Energy Physics - Phenomenology · Physics 2016-09-01 E. Diehl , G. Kane , C. Kolda , J. Wells

We discuss neutralino dark matter arising from supersymmetric models with extra inert Higgsinos and singlinos, where inert means that their scalar partners do not get vacuum expectation values. As an example, we consider the extended…

High Energy Physics - Phenomenology · Physics 2009-09-28 Jonathan P. Hall , Stephen F. King

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

Various methods of searching for supersymmetric dark matter are sensitive to WIMPs with different properties. One consequence of this is that the phenomenology of dark matter detection can vary dramatically in different supersymmetric…

High Energy Physics - Phenomenology · Physics 2009-11-10 Dan Hooper , Lian-Tao Wang

We revisit indirect detection possibilities for neutralino dark matter, emphasizing the complementary roles of different approaches. While thermally produced dark matter often requires large astrophysical "boost factors" to observe…

High Energy Physics - Phenomenology · Physics 2008-10-16 Phill Grajek , Gordon Kane , Daniel J. Phalen , Aaron Pierce , Scott Watson

In an extension of MSSM with two triplets and a singlet, called the TNMSSM, there are seven neutralinos which can enrich the study of cold dark matter if one expects that the weakly interacting massive particle (WIMP) is responsible for the…

High Energy Physics - Phenomenology · Physics 2024-11-28 Zhong-Jun Yang , Jin-Lei Yang , Shu-Min Zhao , Xing-Gang Wu , Tai-Fu Feng

Recent studies have suggested the possibility that the lightest supersymmetric particle is a suitable dark matter candidate. In this theoretical framework, annihilations in high density environments like the center of dark matter haloes may…

Astrophysics · Physics 2007-05-23 Lidia Pieri , Enzo Branchini

We analyze the direct detection rate of minimal supersymmetric neutralino dark matter in germanium, sapphire and sodium iodide detectors, imposing cosmological and accelerator bounds including those from \bsg\ decay. In contrast with…

High Energy Physics - Phenomenology · Physics 2011-01-25 P. Gondolo , L. Bergstrom

Neutralino dark matter is studied in the context of a supergravity scheme where the scalar mass terms are not constrained by universality conditions at the grand unification scale. We analyse in detail the consequences of the relaxation of…

High Energy Physics - Phenomenology · Physics 2016-09-01 V. Berezinsky , A. Bottino , J. Ellis , N. Fornengo , G. Mignola , S. Scopel

In this paper we review the theoretical issues involved in the direct detection of supersymmetric (SUSY) dark matter. After a brief discussion of the allowed SYSY parameter space we focus on the determination of the traditional neutralino…

Astrophysics · Physics 2007-05-23 J. D. Vergados

We consider the neutralino as a dominant Dark Matter particle in the galactic halo and investigate some general issues of direct Dark Matter searches via elastic neutralino-nucleus scattering. On the basis of conventional assumptions about…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. A. Bednyakov , H. V. Klapdor-Kleingrothaus , S. G. Kovalenko

We investigate the level of fine-tuning of neutralino Dark Matter below 200 GeV in the low-energy phenomenological minimal supersymmetric Standard Model taking into account the newest results from XENON100 and the Large Hadron Collider as…

High Energy Physics - Phenomenology · Physics 2015-06-05 Philipp Grothaus , Manfred Lindner , Yasutaka Takanishi

The content of matter in the Universe is estimated to be the 27% of its critical density. It is almost universally accepted that most ot this matter is non-baryonic. Constraints from primordial nucleosynthesis and cosmic background…

Astrophysics · Physics 2015-06-24 E. Bisesi , M. Mariotti , V. Scalzotto

I present an overview of theoretical expectations for detection of dark matter (DM) at the LHC, concentrating entirely on supersymmetric candidates. En route, I present a unified theory which explains dark matter signals at indirect and…

High Energy Physics - Phenomenology · Physics 2010-12-02 Howard Baer

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
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