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The question of the nature of 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 be…

Astrophysics · Physics 2017-08-23 Paolo Gondolo , Joakim Edsjo , Piero Ullio , Lars Bergstrom , Mia Schelke , Edward A. Baltz

Neutralino dark matter can be indirectly detected by observing the gamma ray lines from the annihilation processes XX-->gg and XX-->gZ. In this paper we study the implications that the observation of these two lines could have for the…

High Energy Physics - Phenomenology · Physics 2010-01-08 Carlos E. Yaguna

The detection of non-baryonic dark matter through its gamma-ray annihilation in the centre of our galaxy has been studied. The gamma fluxes according to different models have been simulated and compared to those expected to be observed with…

Exotic dark matter together with dark energy or cosmological constant seem to dominate in the Universe. An even higher density of such matter seems to be gravitationally trapped in our Galaxy. The nature of dark matter can be unveiled only,…

Nuclear Theory · Physics 2009-09-29 J. D. Vergados

New results which correlate SUSY dark matter with LHC signals are presented, and a brief review of recent developments in supersymmetric and hidden sector dark matter is given. It is shown that the direct detection of dark matter is very…

High Energy Physics - Phenomenology · Physics 2009-02-02 Daniel Feldman , Zuowei Liu , Pran Nath

In this paper we study the detectability of $\gamma$-rays from dark matter annihilation in the subhalos of the Milky Way by the satellite-based experiments, EGRET and GLAST. We work in the frame of supersymmetric extension of the standard…

Astrophysics · Physics 2008-11-26 Xiao-Jun Bi

After a short introduction on particle candidates for dark matter within possible extensions of the standard model, we concentrate on Weakly Interacting Massive Particles, and on one of their most interesting physical realizations: the…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Bottino , F. Donato , N. Fornengo , S. Scopel

We estimate the probability of detecting gamma-rays from the annihilation of neutralino dark matter in dense, central regions of Milky Way substructure. We characterize Galactic substructure statistically based on Monte Carlo realizations…

Astrophysics · Physics 2009-11-10 Savvas M. Koushiappas , Andrew R. Zentner , Terrence P. Walker

Possible dark matter candidates are reviewed as well as indirect search methods based on annihilation or decay channels of these particles. Neutralino is presently the best particle candidate and its annihilation produces high energy…

Astrophysics · Physics 2016-08-16 José Antonio De Freitas Pacheco , Sébastien Peirani

Dark matter (comprising a quarter of the Universe) is usually assumed to be due to one and only one weakly interacting particle which is neutral and absolutely stable. We consider the possibility that there are several coexisting…

High Energy Physics - Phenomenology · Physics 2007-12-03 Qing-Hong Cao , Ernest Ma , Jose Wudka , C. -P. Yuan

In these lectures we first briefly review the main observational facts which imply that most part of matter in the Universe is not visible and some recent intriguing experimental data which would point to a significant contribution to Omega…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Bottino , N. Fornengo

Dark matter caustics are small scale, high density structures believed to exist in galaxies like ours. If the dark matter consists of Weakly Interacting Massive Particles, these caustics may be detected by means of the gamma rays produced…

Astrophysics · Physics 2008-12-18 Aravind Natarajan , Pierre Sikivie

One of the great scientific enigmas still unsolved, the existence of dark matter, is reviewed. Simple gravitational arguments imply that most of the mass in the Universe, at least 90%, is some (unknown) non-luminous matter. Some particle…

High Energy Physics - Phenomenology · Physics 2009-11-07 Shaaban Khalil , Carlos Munoz

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

Analytical calculations and recent numerical experiments have shown that a sizable of the mass in our Galaxy is in a form of clumpy, virialized substructures that, according to \cite{dms:05}, can be as light as $10^{-6} \msun$. In this work…

Astrophysics · Physics 2009-11-11 Lidia Pieri , Enzo Branchini , Stefan Hofmann

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

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 2016-11-03 Paolo Gondolo , Joakim Edsjo , Lars Bergstrom , Piero Ullio , Edward A. Baltz

The presence of dark matter in the Universe is nowadays widely supported by a large body of astronomical and cosmological observations. The central region of the Milky Way is expected to harbor a large amount of dark matter.…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Lucia Rinchiuso , Emmanuel Moulin

We consider the prospects of supersymmetric dark matter in light of the recent results announced by the CDMS experiments. In this paper, we investigate the status of: (i) neutralino dark matter in models of minimal supergravity, (ii)…

High Energy Physics - Phenomenology · Physics 2010-04-30 Rouzbeh Allahverdi , Bhaskar Dutta , Yudi Santoso

The supersymmetric extension to the Standard Model offers a promising cold dark matter candidate, the lightest neutralino. I will review the phenomenological and cosmological constraints on the supersymmetric parameter space and discuss the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Keith A. Olive