Clumpy neutralino dark matter - art. no. 043506.

Citation
L. Bergstrom et al., Clumpy neutralino dark matter - art. no. 043506., PHYS REV D, 5904(4), 1999, pp. 3506
Citations number
49
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
5904
Issue
4
Year of publication
1999
Database
ISI
SICI code
0556-2821(19990215)5904:4<3506:CNDM-A>2.0.ZU;2-G
Abstract
We investigate the possibility to detect neutralino dark matter in a scenar io in which the galactic dark halo is clumpy. We find that under customary assumptions on various astrophysical parameters, the antiproton and continu um gamma-ray signals from neutralino annihilation in the halo put the stron gest limits on the clumpiness of a neutralino halo. We argue that indirect detection through neutrinos from the Earth and the Sun should not be affect ed much by clumpiness. We identify situations in parameter space where the gamma-ray line, positron and diffuse neutrino signals from annihilations in the halo may provide interesting signals in upcoming detectors. [S0556-282 1(99)00802-4].