Published March 15, 1991
| Published
Journal Article
Open
Distinctive positron feature from particle dark-matter annihilations in the galatic halo
- Creators
-
Kamionkowski, Marc
- Turner, Michael S.
Chicago
An error occurred while generating the citation.
Abstract
If the dark matter in our galactic halo consists of weakly interacting massive particles (WIMP's) heavier than the W± boson which have a significant annihilation branch into W± and Z0 pairs, e.g., a Higgsino-like neutralino, a very distinctive feature in the cosmic-ray positron spectrum arises from W+ and Z0 decays. Because of inherent astrophysical uncertainties such a signal is by no means guaranteed even if heavy WIMP's do comprise the galactic halo. However, the positron signature is virtually a "smoking gun" for particle dark matter in the halo and thus worthy of note.
Additional Information
© 1991 The American Physical Society Received 26 November 1990 This work was supported in part bu the DOE (at Chicago and at Fermilab), and by NASA (Grant No. NAGW-1340 at Fermilab). MPK would like to thank the NASA Graduate Student Researchers Program for financial assistance.Attached Files
Published - KAMprd91a.pdf
Files
KAMprd91a.pdf
Files
(1.4 MB)
| Name | Size | Download all |
|---|---|---|
|
md5:439e72735816fda0a1b360de0593d8ee
|
1.4 MB | Preview Download |
Additional details
- Eprint ID
- 3478
- Resolver ID
- CaltechAUTHORS:KAMprd91a
- Department of Energy (DOE)
- NASA
- NGW-1340
- NASA Graduate Student Research Fellowship
- Created
-
2006-06-08Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field