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Next-to-Minimal Supersymmetric Standard Model neutralino dark matter candidates in the (1-15) GeV range are found with a Markov Chain Monte Carlo scanning code. A very light, singlet-like Higgs and/or CP-odd Higgs is needed in order to…

High Energy Physics - Phenomenology · Physics 2012-04-19 Daniel Albornoz Vásquez

If dark matter self-annihilates into neutrinos or a second component of ("boosted") dark matter that is nucleophilic, the annihilation products may be detected with high rates via coherent nuclear scattering. A future multi-ten-tonne liquid…

High Energy Physics - Phenomenology · Physics 2019-05-22 David McKeen , Nirmal Raj

If the lightest dark matter neutralino has a sufficiently large Higgsino component, its spin-independent and spin-dependent cross sections on nucleons can be sizable enough to be detected soon in direct and indirect surveys. We outline in…

High Energy Physics - Phenomenology · Physics 2015-03-17 Ilia Gogoladze , Rizwan Khalid , Yukihiro Mimura , Qaisar Shafi

We consider the possibility that the recently reported events at the CDMS-II direct dark matter detection experiment are the result of coherent scattering of supersymmetric neutralinos. In such a scenario we argue that non-universal soft…

High Energy Physics - Phenomenology · Physics 2010-05-28 Michael Holmes , Brent D. Nelson

The light higgsino-singlino scenario of the NMSSM allows to combine a naturally small $\mu$ parameter with a good dark matter relic density. Given the new constraints on spin-dependent and spin-independent direct detection cross sections in…

High Energy Physics - Phenomenology · Physics 2017-03-08 Ulrich Ellwanger

The higgsino-like neutralino is a compelling dark matter candidate motivated by both cosmology and naturalness considerations. While a pure higgsino typically requires a mass of around $1.1~\mathrm{TeV}$ to satisfy the observed thermal…

High Energy Physics - Phenomenology · Physics 2026-03-26 Yuanfang Yue , Yuetao Wang

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 study potential signals of neutralino dark matter indirect detection by neutrino telescopes in a wide range of CMSSM parameters. We also compare with direct detection potential signals taking into account in both cases present and future…

High Energy Physics - Phenomenology · Physics 2008-11-26 V. Bertin , E. Nezri , J. Orloff

For the experimental search of neutralino dark matter, it is important to know its allowed mass and scattering cross section with the nucleon. In order to figure out how light a neutralino dark matter can be predicted in low energy…

High Energy Physics - Phenomenology · Physics 2011-09-12 Junjie Cao , Ken-ichi Hikasa , Wenyu Wang , Jin Min Yang

We review the annihilation of dark matter into neutrinos over a range of dark matter masses from MeV$/c^2$ to ZeV$/c^2$. Thermally-produced models of dark matter are expected to self-annihilate to standard model products. As no such signal…

High Energy Physics - Phenomenology · Physics 2021-09-22 Carlos A. Argüelles , Alejandro Diaz , Ali Kheirandish , Andrés Olivares-Del-Campo , Ibrahim Safa , Aaron C. Vincent

We outline the WIMP dark matter parameter space in the Constrained MSSM by performing a comprehensive statistical analysis that compares with experimental data predicted superpartner masses and other collider observables as well as a cold…

Astrophysics · Physics 2008-11-26 Roberto Trotta , Roberto Ruiz de Austri , Leszek Roszkowski

A full one-loop calculation of neutralino S-wave annihilation into the $Z\gamma$ final state is performed in the minimal supersymmetric extension of the Standard Model. This process, like the similar one with two photons in the final state,…

High Energy Physics - Phenomenology · Physics 2010-11-30 P. Ullio , L. Bergstrom

The requirement that the lightest neutralino $\tilde\chi_1^0$ has the right thermal relic density to explain all Dark Matter in the universe strongly constrains the parameter space of supersymmetric models in general, and of the mSUGRA…

High Energy Physics - Phenomenology · Physics 2009-11-11 Abdelhak Djouadi , Manuel Drees , Jean-Loic Kneur

We set an upper limit on the mass of a supersymmetric neutralino dark matter particle using the MicrOMEGAS and DarkSUSY software packages and the most recent constraints on relic density from combined WMAP and SDSS data. We explore several…

High Energy Physics - Phenomenology · Physics 2008-11-26 Rudy C. Gilmore

In most global fits of the constrained minimal supersymmetric model (CMSSM) to indirect data, the a priori likelihoods of any two points in tan beta are treated as equal, and the more fundamental mu and B Higgs potential parameters are…

High Energy Physics - Phenomenology · Physics 2009-09-29 Benjamin C. Allanach , Dan Hooper

We investigate the prospects of indirect searches for supersymmetric neutralino dark matter. Relic neutralinos gravitationally accumulate in the Sun and their annihilations produce high energy neutrinos. Muon neutrinos of this origin can be…

High Energy Physics - Phenomenology · Physics 2009-09-15 Vernon Barger , Francis Halzen , Dan Hooper , Chung Kao

We investigate the viability of light neutralino scenarios as promoted by dark matter direct detection experiments. Using high statistics scans in the pMSSM we have identified several scenarios which give rise to very light neutralinos with…

High Energy Physics - Phenomenology · Physics 2012-10-08 A. Arbey , M. Battaglia , F. Mahmoudi

We study the impact of recent direct and indirect searches for particle dark matter on supersymmetric models with resonant neutralino- or chargino-driven electroweak baryogenesis (EWB) and heavy sfermions. We outline regions of successful…

High Energy Physics - Phenomenology · Physics 2011-11-18 Jonathan Kozaczuk , Stefano Profumo

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

The viability of the lightest neutralino as a dark matter candidate in the Next-to-Minimal Supersymmetric Standard Model is analysed. We carry out a thorough analysis of the parameter space, taking into account accelerator constraints as…

High Energy Physics - Phenomenology · Physics 2010-10-27 D. G. Cerdeno , E. Gabrielli , D. E. Lopez-Fogliani , C. Munoz , A. M. Teixeira