Gluino Annihilations and Neutralino Dark Matter

Details Gluino Annihilations and Neutralino Dark Matter Gluino Annihilations and Neutralino Dark Matter

2004-02-19

arxiv.org/abs/hep-ph/0402208v4

Phys.Rev. D69 (2004) 115009

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 6 figures; v4: one figure added, discussion enlarged; final version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.69.115009

We consider supersymmetric scenarios, compatible with all cosmological and phenomenological requirements, where the lightest SUSY particles (LSPs) are the neutralino and a quasi degenerate gluino. We study the neutralino relic abundance, focusing on gluino (co-)annihilation effects. In case the neutralino is bino-like, in a wide mass window the relic abundance is naturally driven in the correct range for the LSP to be the main cold dark matter constituent. We show that the gluino is the strongest possible coannihilating partner of a bino-like neutralino in the general MSSM. Moreover, contrary to other coannihilation scenarios, gluino pair annihilations always dominate over coannihilation processes, even at relatively large gluino-neutralino mass splittings. Finally, we present prospects for neutralino dark matter detection in the outlined framework.

Affiliated with

Also associated with

No associations

Rating

Gluino Annihilations and Neutralino Dark Matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gluino Annihilations and Neutralino Dark Matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gluino Annihilations and Neutralino Dark Matter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-214081