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Title: New DAMA dark-matter window and energetic-neutrino searches

Abstract

Recently, the DAMA/LIBRA Collaboration has repeated and reinforced their claim to have detected an annual modulation in their signal rate, and have interpreted this observation as evidence for dark-matter particles at the 8.2{sigma} confidence level. Furthermore, it has also been noted that the effects of channeling may enable a weakly interacting massive particle (WIMP) that scatters elastically via spin-independent interactions from nuclei to produce the signal observed by DAMA/LIBRA without exceeding the limits placed by CDMS, XENON, CRESST, CoGeNT, and other direct-detection experiments. To accommodate this elastic-scattering explanation, however, the mass of the responsible dark-matter particle must be relatively light, m{sub DM} < or approx. 10 GeV. Such dark-matter particles will become captured by and annihilate in the Sun at very high rates, leading to a potentially large flux of GeV-scale neutrinos. We calculate the neutrino spectrum resulting from WIMP annihilations in the Sun and show that existing limits from Super-Kamiokande can be used to close a significant portion of the DAMA region, especially if the dark-matter particles produce tau leptons or neutrinos in a sizable fraction of their annihilations. We also determine the spin-dependent WIMP-nuclei elastic-scattering parameter space consistent with DAMA. The constraints from Super-Kamiokande on the spin-dependent scenariomore » are even more severe--they exclude any self-annihilating WIMP in the DAMA region that annihilates 1% of the time or more to any combination of neutrinos, tau leptons, or charm or bottom quarks.« less

Authors:
 [1]; ;  [2];  [3]
  1. Theoretical Astrophysics, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  2. Physics Department, University of Wisconsin, Madison, Wisconsin 53706 (United States)
  3. California Institute of Technology, Mail Code 130-33, Pasadena, California 91125 (United States)
Publication Date:
OSTI Identifier:
21254738
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 79; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.79.015010; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; B QUARKS; CHANNELING; COMPUTERIZED SIMULATION; DETECTION; ELASTIC SCATTERING; GEV RANGE 01-10; LEPTONS; MASS; MODULATION; NEUTRINOS; NONLUMINOUS MATTER; SPECTRA; SPIN; SUN; TAU PARTICLES

Citation Formats

Hooper, Dan, Petriello, Frank, Zurek, Kathryn M, and Kamionkowski, Marc. New DAMA dark-matter window and energetic-neutrino searches. United States: N. p., 2009. Web. doi:10.1103/PHYSREVD.79.015010.
Hooper, Dan, Petriello, Frank, Zurek, Kathryn M, & Kamionkowski, Marc. New DAMA dark-matter window and energetic-neutrino searches. United States. https://doi.org/10.1103/PHYSREVD.79.015010
Hooper, Dan, Petriello, Frank, Zurek, Kathryn M, and Kamionkowski, Marc. 2009. "New DAMA dark-matter window and energetic-neutrino searches". United States. https://doi.org/10.1103/PHYSREVD.79.015010.
@article{osti_21254738,
title = {New DAMA dark-matter window and energetic-neutrino searches},
author = {Hooper, Dan and Petriello, Frank and Zurek, Kathryn M and Kamionkowski, Marc},
abstractNote = {Recently, the DAMA/LIBRA Collaboration has repeated and reinforced their claim to have detected an annual modulation in their signal rate, and have interpreted this observation as evidence for dark-matter particles at the 8.2{sigma} confidence level. Furthermore, it has also been noted that the effects of channeling may enable a weakly interacting massive particle (WIMP) that scatters elastically via spin-independent interactions from nuclei to produce the signal observed by DAMA/LIBRA without exceeding the limits placed by CDMS, XENON, CRESST, CoGeNT, and other direct-detection experiments. To accommodate this elastic-scattering explanation, however, the mass of the responsible dark-matter particle must be relatively light, m{sub DM} < or approx. 10 GeV. Such dark-matter particles will become captured by and annihilate in the Sun at very high rates, leading to a potentially large flux of GeV-scale neutrinos. We calculate the neutrino spectrum resulting from WIMP annihilations in the Sun and show that existing limits from Super-Kamiokande can be used to close a significant portion of the DAMA region, especially if the dark-matter particles produce tau leptons or neutrinos in a sizable fraction of their annihilations. We also determine the spin-dependent WIMP-nuclei elastic-scattering parameter space consistent with DAMA. The constraints from Super-Kamiokande on the spin-dependent scenario are even more severe--they exclude any self-annihilating WIMP in the DAMA region that annihilates 1% of the time or more to any combination of neutrinos, tau leptons, or charm or bottom quarks.},
doi = {10.1103/PHYSREVD.79.015010},
url = {https://www.osti.gov/biblio/21254738}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 1,
volume = 79,
place = {United States},
year = {2009},
month = {1}
}