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We discuss the prospects for detection of high energy neutrinos from dark matter annihilation at the Galactic centre. Despite the large uncertainties associated with our poor knowledge of the distribution of dark matter in the innermost…

Astrophysics · Physics 2009-11-10 Gianfranco Bertone , Emmanuel Nezri , Jean Orloff , Joseph Silk

Neutrinos are the least detectable Standard Model particle. By making use of this fact, we consider dark matter annihilations and decays in the galactic halo and show how present and future neutrino detectors could be used to set general…

High Energy Physics - Phenomenology · Physics 2008-05-23 Sergio Palomares-Ruiz

We study direct detection of dark matter in supersymmetric (SUSY) model where most of SUSY particles have very high-scale masses beyond the weak scale. In the scenario, Wino-like or Higgsino-like neutralino is a good candidate for the dark…

High Energy Physics - Phenomenology · Physics 2013-03-04 Junji Hisano , Koji Ishiwata , Natsumi Nagata

In the Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM) the lightest supersymmetric particle (LSP) is a candidate for the dark matter (DM) in the universe. It is a mixture from the various gauginos and Higgsinos and can be bino-,…

High Energy Physics - Phenomenology · Physics 2017-09-25 C. Beskidt , W. de Boer , D. I. Kazakov , S. Wayand

We consider the possibility that the gravitino might be the lightest supersymmetric particle (LSP) in the constrained minimal extension of the Standard Model (CMSSM). In this case, the next-to-lightest supersymmetric particle (NSP) would be…

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

The lightest supersymmetric particle (LSP) is stable in an R-parity conserving theory. In this article the steps needed to calculate the present day mass density of such a particle are detailed. It is shown that there can be a…

High Energy Physics - Phenomenology · Physics 2007-05-23 James D. Wells

We present a new inelastic dark matter search: neutron stars in dark matter-rich environments capture inelastic dark matter which, for interstate mass splittings between about $45 - 285 \ \rm MeV$, will annihilate away before becoming fully…

High Energy Physics - Phenomenology · Physics 2024-04-17 Javier F. Acevedo , Joseph Bramante , Qinrui Liu , Narayani Tyagi

If the dark matter consists of supersymmetric particles, Gamma-ray observatories such as the Large Area Telescope aboard the Fermi satellite may detect annihilation radiation from the haloes of galaxies and galaxy clusters. Much recent…

Cosmology and Nongalactic Astrophysics · Physics 2011-12-30 L. Gao , C. S. Frenk , A. Jenkins , V. Springel , S. D. M. White

We compute the neutralino direct detection rate in non-standard cosmological scenarios where neutralinos account for the dark matter of the Universe. Significant differences are found when such rates are compared with those predicted by the…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Gelmini , P. Gondolo , A. Soldatenko , C. E. Yaguna

I will begin by reviewing the evidence for Dark Matter in the Universe, as well as the candidates for dark matter. At most 20% of the dark matter in galaxies can be in the form of MACHOs (Massive Compact Halo Objects); the remainder appears…

Astrophysics · Physics 2008-11-26 Katherine Freese

Within the framework of the Minimal Supersymmetric Standard Model (MSSM), we explore a decoupling of the parameters into separate sectors that determine consistency with collider data, the abundance of dark matter, and potential signatures…

High Energy Physics - Phenomenology · Physics 2016-07-27 Pearl Sandick

The neutralino, the lightest stable supersymmetric particle, is a strong theoretical candidate for the missing astronomical "dark matter". Depending on their annihilation cross section, relic neutralinos from early formation of the Universe…

Astrophysics · Physics 2007-05-23 Lazar Fleysher

We analyze the prospects for light neutralino dark matter in the minimal supersymmetric model extended by a $U(1)$ gauge group. We allow the neutralino to be an arbitrary admixture of singlet and doublet higgsinos, as well as of the three…

High Energy Physics - Phenomenology · Physics 2014-10-22 Mariana Frank , Subhadeep Mondal

Some extensions of the Standard Model provide Dark Matter candidate particles with sub-GeV mass. These Light Dark Matter particles have been considered for example in Warm Dark Matter scenarios (e.g. the keV scale sterile neutrino, axino or…

The question of the nature of the dark matter in the Universe remains one of the most outstanding unsolved problems in basic science. One of the best motivated particle physics candidates is the lightest supersymmetric particle, assumed to…

Astrophysics · Physics 2016-08-30 P. Gondolo , J. Edsjo , P. Ullio , L. Bergstrom , M. Schelke , E. A. Baltz

The evidence for the existence of dark matter in the universe is reviewed. A general picture emerges, where both baryonic and non-baryonic dark matter is needed to explain current observations. In particular, a wealth of observational…

High Energy Physics - Phenomenology · Physics 2009-07-09 L. Bergstrom

We review some recent determinations of the amount of dark matter on galactic and larger scales, with special attention to the dark matter in the Milky Way. We then briefly review the motivation for and basic physics of several dark matter…

Astrophysics · Physics 2007-05-23 Kim Griest

Gravitino is one feasible candidate for the dark matter in supergravity models. With its couplings being suppressed by the Plank mass, gravitino interacts very weakly with other particles, making its direct detection, or production at…

High Energy Physics - Phenomenology · Physics 2007-09-26 Yudi Santoso

The nature of the dark matter of the Universe is yet unknown and most likely is connected with new physics. The search for its composition is under way through direct and indirect detection. Fundamental physical aspects such as energy…

High Energy Physics - Phenomenology · Physics 2009-11-07 Ivone F. M. Albuquerque , Jodi Lamoureux , George F. Smoot

There is plenty of evidence that most matter in the Universe is dark (non-luminous). Particle physics offers several possible explanations. In this talk I focus on cold dark matter; the most promising candidates are then axions and the…

High Energy Physics - Phenomenology · Physics 2008-02-03 Manuel Drees
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