Investigating light neutralinos at neutrino telescopes

Abstract

We present a detailed analysis of the neutrino-induced muon signals coming from neutralino pair-annihilations inside the Sun and the Earth with particular emphasis for light neutralinos. The theoretical model considered is an effective MSSM without gaugino-mass unification, which allows neutralinos of light masses (below 50 GeV). The muon events are divided in through-going and stopping muons, using the geometry of the Super-Kamiokande detector. In the evaluation of the signals, we take into account the relevant hadronic and astrophysics uncertainties and include neutrino oscillation and propagation properties in a consistent way. We derive the ranges of neutralino masses which could be explored at neutrino telescopes with a low muon-energy threshold (around 1 GeV) depending on the category of events and on the values of the various astrophysics and particle-physics parameters. A final analysis is focussed to the upward muon fluxes which could be generated by those neutralino configurations which are able to explain the annual modulation data of the DAMA/LIBRA experiment. We show how combining these data with measurements at neutrino telescopes could help in pinning down the features of the DM particle and in restraining the ranges of the many quantities (of astrophysics and particle-physics origins) which enter in the evaluations and still suffer from large uncertainties.

28 pages, 16 figures, a few references and minor comments added

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Cited by in corpus (33)

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• Observations of annual modulation in direct detection of relic particles and light neutralinos
• Direct and indirect detection of higgsino-like WIMPs: concluding the story of electroweak naturalness
• New Limits on Dark Matter from Super-Kamiokande
• Discussing direct search of dark matter particles in the Minimal Supersymmetric extension of the Standard Model with light neutralinos
• Relic neutralinos and the two dark matter candidate events of the CDMS II experiment
• Enhancing Dark Matter Annihilation into Neutrinos
• Dark Matter-Motivated Searches for Exotic 4th Generation Quarks in Tevatron and Early LHC Data
• Light mixed sneutrinos as thermal dark matter
• Light Dark Matter, Light Higgs and the Electroweak Phase Transition
• Dark Matter Indirect Signatures
• CoGeNT, DAMA, and Light Neutralino Dark Matter
• Constraints on Light WIMP candidates from the Isotropic Diffuse Gamma-Ray Emission
• Neutrino Fluxes from CMSSM LSP Annihilations in the Sun
• Neutron Majorana mass from exotic instantons
• Complementarity of direct and indirect Dark Matter detection experiments
• A Two-Singlet Model for Light Cold Dark Matter
• The Electroweak Supersymmetry (EWSUSY) from the GmSUGRA in the MSSM
• Dark Matter Detection With Electron Neutrinos in Liquid Scintillation Detectors
• Measuring a Light Neutralino Mass at the ILC: Testing the MSSM Neutralino Cold Dark Matter Model
• Fermion WIMPless Dark Matter at DeepCore and IceCube
• Neutrino Fluxes from NUHM LSP Annihilations in the Sun
• A novel method to extract dark matter parameters from neutrino telescope data
• Neutrino Probes of the Nature of Light Dark Matter
• Probing the Dark Matter mass and nature with neutrinos
• Annihilation of NMSSM neutralinos in the Sun and neutrino telescope limits
• Phenomenology of a Light Cold Dark Matter Two-Singlet Model
• On the Role of Neutrinos Telescopes in the Search for Dark Matter Annihilations in the Sun
• Neutrinos from WIMP annihilation in the Sun : Implications of a self-consistent model of the Milky Way's dark matter halo
• Downward-going tau neutrinos as a new prospect of detecting dark matter
• Exploring the singlet scalar dark matter from direct detections and neutrino signals via its annihilation in the Sun
• Neutrinos from the Sun can discover dark matter-electron scattering
• Constraining dark matter capture and annihilation cross sections by searching for neutrino signature from the Earth core