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In constrained minimal supersymmetry the lightest neutralino of bino-type is the only neutral candidate for dark matter. As a result, one is typically able to restrict all the supersymmetric mass spectra below roughly 1-2\tev\ {\em without}…

High Energy Physics - Phenomenology · Physics 2008-02-03 G. L. Kane , Chris Kolda , Leszek Roszkowski , James D. Wells

An explanation of relations between the large scale structure of the universe and the tiny scale structure of the particle physics, e.g. the observed mysterious relation between the (dark) energy density and the dark matter of the universe…

High Energy Physics - Theory · Physics 2009-08-03 Kazunari Shima , Motomu Tsuda

In this talk we investigate the dark matter prospects for supersymmetric models with non-universal gaugino masses. We motivate the use of non-universal gaugino masses from several directions, including problems with the current favorite…

High Energy Physics - Phenomenology · Physics 2014-11-17 Andreas Birkedal-Hansen

The lightest supersymmetric particle, most likely the lightest neutralino, is one of the most prominent particle candidates for cold dark matter (CDM). We show that the primordial spectrum of density fluctuations in neutralino CDM has a…

Astrophysics · Physics 2017-08-23 S. Hofmann , D. J. Schwarz , H. Stocker

The search for supersymmetric partners at Large Hadron Collider revealed negative result. Though, strictly speaking, it does not exclude low energy supersymmetry, but still it leads to strong constraints of the parameter space. Therefore…

High Energy Physics - Phenomenology · Physics 2024-01-26 E. V. Arbuzova

Neutralinos are the natural well-motivated candidates to provide the non-baryonic dark matter of the universe which may produce detectable signals through their annihilation into neutrinos, photons or positrons. Due to its high flux…

Astrophysics · Physics 2016-08-30 J. Flix , M. Martinez , F. Prada

Frozen SUSY is the maximally suppressed Supersymmetric SU(5) Grand Unified Theory coupled to Supergravity. In Frozen SUSY, there is only one extra particle in addition to those that appear in the usual non-supersymmetric SU(5) Grand Unified…

General Physics · Physics 2019-05-20 John A. Dixon

Exotic dark matter together with the vacuum energy (associated with the cosmological constant) seem to dominate in the Universe. Thus its direct detection is central to particle physics and cosmology. Supersymmetry provides a natural dark…

Astrophysics · Physics 2009-11-07 J. D. Vergados

One of the key motivations for supersymmetry is that it provides a natural candidate for dark matter. For a long time the density of this candidate particle fell within cosmological bounds across much of the SUSY parameter space. However…

High Energy Physics - Phenomenology · Physics 2007-06-04 J. P. Roberts

An overview is given of various dark matter candidates. Among the many suggestions given in the literature, axions, inert Higgs doublet, sterile neutrinos, supersymmetric particles and Kaluza-Klein particles are discussed. The situation has…

High Energy Physics - Phenomenology · Physics 2010-01-15 Lars Bergstrom

The detection of dark matter is central to particle physics and cosmology. Current fashionable supersymmetric models provide a dark matter candidate, the lightest supersymmetric particle (LSP). When combined with fairly well understood…

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

The requirement of electroweak naturalness in supersymmetric (SUSY) models of particle physics necessitates light higgsinos not too far from the weak scale characterized by m(weak)~ m(W,Z,h)~100 GeV. On the other hand, LHC Higgs mass…

High Energy Physics - Phenomenology · Physics 2018-11-14 Howard Baer , Vernon Barger , Dibyashree Sengupta , Xerxes Tata

The lightest neutralino, assumed to be the lightest supersymmetric particle, is proposed to be a dark matter (DM) candidate for the mass $\cal{O}$(100) GeV. Constraints from various direct dark matter detection experiments and Planck…

High Energy Physics - Phenomenology · Physics 2021-09-29 Monoranjan Guchait , Arnab Roy , Seema Sharma

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

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) provides a natural framework to realize a low-scale supersymmetric (SUSY) model, where a singlet superfield is added to the minimal model to generate a SUSY-scale higgsino mass term…

High Energy Physics - Phenomenology · Physics 2018-11-14 Junichiro Kawamura , Tatsuo Kobayashi , Natsumi Nagata

We present an overview of supersymmetry searches, both at collider experiments and via searches for dark matter (DM). We focus on three DM possibilities in the SUSY context: the thermally produced neutralino, a mixture of axion and axino,…

High Energy Physics - Phenomenology · Physics 2014-11-18 Howard Baer , Eun-Kyung Park , Xerxes Tata

In this review article, we discuss the current status of particle dark matter, including experimental evidence and theoretical motivations. We discuss a wide array of candidates for particle dark matter, but focus on neutralinos in models…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gianfranco Bertone , Dan Hooper , Joseph Silk

The ability of the LHC to make statements about the dark matter problem is considered, with a specific focus on supersymmetry. After reviewing the current strategies for supersymmetry searches at the LHC (in both CMS and ATLAS), some key…

High Energy Physics - Phenomenology · Physics 2010-11-03 Martin J. White

We consider supersymmetric (SUSY) models in which a very light gravitino is the lightest SUSY particle. Assuming that a neutralino is the next-to-lightest SUSY particle, we present a measurement of the neutralino mass at the LHC in two…

High Energy Physics - Phenomenology · Physics 2010-05-12 Koichi Hamaguchi , Eita Nakamura , Satoshi Shirai

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
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