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Different mechanisms operate in various regions of the MSSM parameter space to bring the relic density of the lightest neutralino, neutralino_1, assumed here to be the LSP and thus the Dark Matter (DM) particle, into the range allowed by…

We suggest the use of moderately superheated liquids in the form of superheated droplet detectors for a new type of neutralino search experiment. The advantage of this method for Dark Matter detection is, that the detector material is…

High Energy Physics - Experiment · Physics 2007-05-23 L. A. Hamel , L. Lessard , V. Zacek , Bhaskar Sur

Within the Minimal Supersymmetric Standard Model (MSSM), LHC bounds suggest that scalar superpartner masses are far above the electroweak scale. Given a high superpartner mass, nonthermal dark matter is a viable alternative to WIMP dark…

High Energy Physics - Phenomenology · Physics 2014-02-05 Richard Easther , Richard Galvez , Ogan Ozsoy , Scott Watson

Dark matter (DM) coupled to light mediators has been invoked to resolve the putative discrepancies between collisionless cold DM and galactic structure observations. However, $\gamma$-ray searches and the CMB strongly constrain such…

High Energy Physics - Phenomenology · Physics 2018-06-27 Iason Baldes , Marco Cirelli , Paolo Panci , Kalliopi Petraki , Filippo Sala , Marco Taoso

Can we learn about New Physics with astronomical and astro-particle data? Since its launch in 2008, the Large Area Telescope, onboard of the Fermi Gamma-ray Space Telescope, has detected the largest amount of gamma rays in the 20 MeV - 300…

High Energy Astrophysical Phenomena · Physics 2022-03-02 A. Morselli , E. Nuss , G. Zaharijas

The detection of dark matter has made great progresses in recent years. We give a brief review on the status and progress in dark matter detection, including the progresses in direct detection, collider detection at LHC and focus on the…

High Energy Physics - Phenomenology · Physics 2014-09-17 Xiao-Jun Bi , Peng-Fei Yin , Qiang Yuan

A thorough analysis of sneutrinos as dark matter candidates is performed, in different classes of supersymmetric models, as is typically done for the neutralino dark matter. First in the Minimal Supersymmetric Standard Model, sneutrinos are…

High Energy Physics - Phenomenology · Physics 2008-05-15 Chiara Arina

We explore dark matter in the Finely Tuned Minimal Supersymmetric Standard model recently proposed by Arkani-Hamed and Dimopoulos. Relative to the MSSM, there are fewer particles at freeze-out, so the calculation of the relic abundance…

High Energy Physics - Phenomenology · Physics 2008-11-26 Aaron Pierce

While much supersymmetric weakly interacting massive particle (WIMP) parameter space has been ruled out, one remaining important candidate is Higgsino dark matter. The Higgsino can naturally realize the "inelastic dark matter" scenario,…

High Energy Physics - Phenomenology · Physics 2025-04-01 Peter W. Graham , Harikrishnan Ramani , Samuel S. Y. Wong

I review prospects for detecting dark matter in space-based experiments, with an emphasis on recent developments. I propose the ``Martha Stewart criterion'' for identifying dark matter candidates that are particularly worth investigation…

Astrophysics · Physics 2009-11-10 Jonathan L. Feng

The supersymmetric extension to the Standard Model offers a promising cold dark matter candidate, the lightest neutralino. I will review the prospects for the detection of this candidate in both accelerator and direct detection searches.

High Energy Physics - Phenomenology · Physics 2017-08-23 Keith A. Olive

An analysis of supersymmetric dark matter under the Yukawa unification constraint is given. The analysis utilizes the recently discovered region of the parameter space of models with gaugino mass nonuniversalities where large negative…

High Energy Physics - Phenomenology · Physics 2011-05-05 Utpal Chattopadhyay , Achille Corsetti , Pran Nath

We present brief synopses of supersymmetric models where either the neutralino composition or its mass is adjusted so that thermal relic neutralinos from the Big Bang saturate the measured abundance of cold dark matter in the universe. We…

High Energy Physics - Phenomenology · Physics 2009-01-06 Howard Baer , Azar Mustafayev , Eun-Kyung Park , Xerxes Tata

Gamma rays from the annihilation of dark matter particles in the Galactic halo provide a particularly promising means of indirectly detecting dark matter. Here, we demonstrate that pronounced spectral features at energies near the dark…

High Energy Physics - Phenomenology · Physics 2011-12-05 Torsten Bringmann , Francesca Calore , Gilles Vertongen , Christoph Weniger

We perform a detailed analysis of the detection prospects of neutralino dark matter in the mSUGRA framework. We focus on models with a thermal relic density, estimated with high accuracy using the DarkSUSY package, in the range favored by…

Astrophysics · Physics 2009-11-10 Joakim Edsjo , Mia Schelke , Piero Ullio

We analyse the phenomenology of orbifold scenarios from the heterotic superstring, and the resulting theoretical predictions for the direct detection of neutralino dark matter. In particular, we study the parameter space of these…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. G. Cerdeno , T. Kobayashi , C. Munoz

The identity of Dark Matter (DM) is one of the most captivating topics in particle physics today. The R-parity conserving Minimal Supersymmetric Standard Model (MSSM), which naturally provides a DM candidate in the form of the lightest…

High Energy Physics - Phenomenology · Physics 2018-01-15 Carlos Ávila , Andrés Flórez , Alfredo Gurrola , Dale Julson , Savanna Starko

We study dark matter physics in the Minimal Supersymmetric Standard Model with non-universal gaugino masses at the unification scale. In this scenario, the specific ratio of wino and gluino masses realizes the electro-weak scale naturally…

High Energy Physics - Phenomenology · Physics 2017-09-13 Junichiro Kawamura , Yuji Omura

We study the sensitivity of the NO$\nu$A near detector to MeV-GeV dark matter while operating symbiotically with the neutrino program. We find that NO$\nu$A could explore a large new region of parameter space over the next few years for…

High Energy Physics - Phenomenology · Physics 2019-03-13 Patrick deNiverville , Claudia Frugiuele

We study the implications of dark matter searches, together with collider constraints, on the phenomenological MSSM with neutralino dark matter and focus on the consequences of the related uncertainties in some detail. We consider, inter…

High Energy Physics - Phenomenology · Physics 2017-11-30 A. Arbey , M. Boudaud , F. Mahmoudi , G. Robbins