Published September 3, 2013
| Published + Submitted
Journal Article
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New Sensitivity to Solar WIMP Annihilation using Low-Energy Neutrinos
Abstract
Dark matter particles captured by the Sun through scattering may annihilate and produce neutrinos, which escape. Current searches are for the few high-energy neutrinos produced in the prompt decays of some final states. We show that interactions in the solar medium lead to a large number of pions for nearly all final states. Positive pions and muons decay at rest, producing low-energy neutrinos with known spectra, including ν_e through neutrino mixing. We demonstrate that Super-Kamiokande can thereby provide a new probe of the spin-dependent WIMP-proton cross section. Compared to other methods, the sensitivity is competitive and the uncertainties are complementary.
Additional Information
© 2013 American Physical Society. Received 3 August 2012; published 3 September 2013. We are grateful to Basu Dasgupta, Louie Strigari, and Petr Vogel for helpful discussions. J. S.-G. was supported by NASA through Einstein Postdoctoral Fellowship Grant No. PF1-120089 awarded by the Chandra X-ray Center, which is operated by the Smithsonian Astrophysical Observatory for NASA under Contract No. NAS8-03060. J. F. B. was supported by NSF Grant No. PHY-1101216.Attached Files
Published - PhysRevD.88.055005.pdf
Submitted - 1208.0827v1.pdf
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Additional details
- Eprint ID
- 36453
- Resolver ID
- CaltechAUTHORS:20130117-105418827
- PF1-120089
- NASA Einstein Postdoctoral Fellowship
- NAS8-03060
- NASA
- PHY-1101216
- NSF
- Created
-
2013-02-08Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- TAPIR