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Relic neutralinos produced after the Big Bang are favoured candidates for Dark Matter. They can accumulate at the centre of massive celestial objects like our Sun. Their annihilation can result in a high-energy neutrino flux that could be…

Astrophysics · Physics 2019-08-13 Gordon Lim

We estimate the probability of detecting gamma-rays from the annihilation of neutralino dark matter in the substructure of the Milky Way. We characterize substructure statistically based on Monte Carlo realizations of the formation of a…

Astrophysics · Physics 2007-05-23 Savvas M. Koushiappas , Andrew R. Zentner , Terrence P. Walker

We discuss the detectability of dark matter clumps in the Milky Way halo due to neutralino annihilation. We then focus on a known ``clump'', the Large Magellanic Cloud.

Astrophysics · Physics 2011-05-12 Argyro Tasitsiomi , Jennifer Gaskins , Angela V. Olinto

We investigate the possibility of using accelarator beam particles to collide with the ambient neutralino dark matter particles in cosmic rays as a way to search for the cold dark matter. We study in detail its inelastic and elastic…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tai-Fu Feng , Xue-Qian Li , Wen-Gan Ma , Xin-Min Zhang

This report is a brief review of the efforts to explain the nature of non-baryonic dark matter and of the studies devoted to the search for relic particles. Among the different dark matter candidates, special attention is devoted to relic…

High Energy Physics - Phenomenology · Physics 2015-06-25 Nicolao Fornengo

We revisit MSSM scenarios with light neutralino as a dark matter candidate in view of the latest LHC and dark matter direct and indirect detection experiments. We show that scenarios with a very light neutralino (~ 10 GeV) and a scalar…

High Energy Physics - Phenomenology · Physics 2013-11-08 Alexandre Arbey , Marco Battaglia , Farvah Mahmoudi

The identity of dark matter is a question of central importance in both astrophysics and particle physics. In the past, the leading particle candidates were cold and collisionless, and typically predicted missing energy signals at particle…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-03 Jonathan L. Feng

In theories with a gauge-mediated mechanism of supersymmetry breaking the gravitino is likely to be the lightest superparticle and, hence, a candidate for dark matter. We show that the decay of the next-to-lightest superparticle into a…

High Energy Physics - Phenomenology · Physics 2009-10-28 Stefano Borgani , Antonio Masiero , Masahiro Yamaguchi

Direct and indirect dark matter detection relies on the scattering of the dark matter candidate on nucleons or nuclei. Here, attention is focused on dark matter candidates (neutralinos) predicted in the minimal supersymmetric standard model…

High Energy Physics - Phenomenology · Physics 2014-11-17 John Ellis , Andrew Ferstl , Keith A. Olive

The prevalent Dark Matter (DM) candidate of the (B-L) Supersymmetric Standard Model (BLSSM) is the Right Handed (RH) sneutrino. In this work we assess the ability of ground and space based experiments to establish the nature of this…

High Energy Physics - Phenomenology · Physics 2018-04-23 Luigi Delle Rose , Shaaban Khalil , Simon J. D. King , Suchita Kulkarni , Carlo Marzo , Stefano Moretti , Cem S. Un

In this article, we explore the ability of direct and indirect dark matter experiments to not only detect neutralino dark matter, but to constrain and measure the parameters of supersymmetry. In particular, we explore the relationship…

High Energy Physics - Phenomenology · Physics 2014-11-18 Dan Hooper , Andrew M. Taylor

Top squark-mediated annihilation of bino-like neutralinos to top-antitop pairs can play the dominant role in obtaining a thermal relic dark matter abundance in agreement with observations. In a previous paper, it was argued that this can…

High Energy Physics - Phenomenology · Physics 2008-11-26 Stephen P. Martin

The extra-dimensional origin of dark matter is a fascinating and nowadays often discussed possibility. Here, we present the gamma-ray signatures that are expected from the self-annihilation of Kaluza-Klein dark matter particles. For…

Astrophysics · Physics 2009-11-11 Lars Bergstrom , Torsten Bringmann , Martin Eriksson , Michael Gustafsson

Based on minimal supersymmetric standard model, neutralino dark matter annihilation induced gamma ray emission from galaxy cluster 1E0657-56 is calculated. The merge of bullet-like subcluster with the main cluster is also investigated.

High Energy Astrophysical Phenomena · Physics 2009-01-21 C. Zhang , G. -C. Liu

One of the most well-founded candidates for dark matter remains a split-SUSY model with a Higgsino-like or Wino-like lightest superpartner and the grander SUSY model providing answers for the hierarchy problem and GUT scale unification.The…

High Energy Physics - Phenomenology · Physics 2023-11-28 Carsten Rott , Pearl Sandick , Ben Sheff

The negative outcome of searches for supersymmetry performed at LEP have been used to derive indirect constraints on the parameters of the most plausible supersymmetric candidates for cold dark matter, in particular for the lightest…

High Energy Physics - Experiment · Physics 2007-05-23 Gerardo Ganis

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 consider the lightest supersymmetric particle (LSP), neutralino in minimal anomaly mediated supersymmetry breaking model (mAMSB) to be a possible candidate for weakly interacting massive particles (WIMP) or cold dark matter and…

High Energy Physics - Phenomenology · Physics 2013-06-28 Kamakshya Prasad Modak , Debasish Majumdar

The identity of dark matter has not been solved up to this date, a problem that became the main topic of this conference. There are many theoretical candidates for dark matter particle, including gravitino from supergravity models. For…

High Energy Physics - Phenomenology · Physics 2010-02-17 Yudi Santoso

A comologically stable neutral component from a nearly pure $SU(2)$ doublet, with a mass $\sim$1.1 TeV, is one appealing candidate for dark matter (DM) consistent with all direct dark matter searches. We have explored this possibility in…

High Energy Physics - Phenomenology · Physics 2021-01-27 Antonio Delgado , Mariano Quirós