Discussing direct search of dark matter particles in the minimal supersymmetric extension of the standard model with light neutralinos

2010/11/30 by N. Fornengo, S. Scopel, A. Bottino
Physics and Astronomy · #Computer science #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Electroweak interaction #Electroweak scale #Extension (predicate logic) #Geography #Large Hadron Collider #Minimal Supersymmetric Standard Model #Neutralino #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Standard Model (mathematical formulation) #Supersymmetry #Tevatron #astro-ph.CO #hep-ph

paper · pdf · doi:10.1103/physrevd.83.015001

published as Phys.Rev.D83:015001,2011 · 23 pages, 25 figures, typeset with ReVTeX4. One short section on indirect searches and a few references added. A version of the paper with full resolution figures can be found at http://www.to.infn.it/~scopel/light_2010.pdf

arxiv created 2010/12/15 · openalex publication_date 2011/01/06 · arxiv updated 2011/02/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We examine the status of light neutralinos in an effective minimal supersymmetric extension of the standard model at the electroweak scale which was considered in the past and discussed in terms of the available data of direct searches for dark matter particles. Our reanalysis is prompted by new measurements at the Tevatron and B factories which might potentially provide significant constraints on the minimal supersymmetric extension of the standard model. Here we examine in detail all these new data and show that the present published results from the Tevatron and B factories have only a mild effect on the original light-neutralino population. This population, which fits quite well the DAMA/LIBRA annual modulation data, would also agree with the preliminary results of CDMS, CoGeNT, and CRESST, should these data, which are at present only hints of excesses of events over the expected backgrounds, be interpreted as authentic signals of dark matter. For the neutralino mass we find a lower bound of 7--8 GeV. Our results differ from some recent conclusions by other authors because of a few crucial points which we try to single out and elucidate.

Citations

• Detection of Bs→μ+μ− at the tevatron Run II and constraints on the SUSY parameter space
• Light dark matter detection prospects at neutrino experiments
• Neutralino properties in the light of a further indication of an annual modulation effect in WIMP direct search
• Relic neutralinos and the two dark matter candidate events of the CDMS II experiment
• Low energy antideuterons: shedding light on dark matter
• New DAMA dark-matter window and energetic-neutrino searches
• Light neutralinos at CERN LHC in cosmologically inspired scenarios: New benchmarks in the search for supersymmetry
• Antideuteron fluxes from dark matter annihilation in diffusion models
• DAMA/LIBRA data and leptonically interacting dark matter
• Antideuterons as a signature of supersymmetric dark matter
• Final report of the E821 muon anomalous magnetic moment measurement at BNL
• Measurement of the semileptonic decaysB¯→Dτ−ν¯τandB¯→D*τ−ν¯τ
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• Review of Particle Physics
• Mass bounds on a very light neutralino