Breit-Wigner Enhancement of Dark Matter Annihilation
Journal Article
·
· Phys.Rev.D79:095009,2009
We point out that annihilation of dark matter in the galactic halo can be enhanced relative to that in the early universe due to a Breit-Wigner tail, if the dark matter annihilates through a pole just below the threshold. This provides a new explanation to the 'boost factor' which is suggested by the recent data of the PAMELA, ATIC and PPB-BETS cosmic-ray experiments.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 957441
- Report Number(s):
- SLAC-PUB-13479; PRVDAQ; arXiv:0812.0072; TRN: US1000431
- Journal Information:
- Phys.Rev.D79:095009,2009, Vol. 79; ISSN 1550-7998
- Country of Publication:
- United States
- Language:
- English
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