Precise calculation of neutralino relic density in the minimal supergravity model

Details Precise calculation of neutralino relic density in the minimal supergravity model Precise calculation of neutralino relic density in the minimal supergravity model

2000-12-11

arxiv.org/abs/hep-ph/0012122v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 4 figures, LaTeX. Talk given at 4th International Workshop on Particle Physics and the Early Universe (COSMO-2000),

Scientific paper

We study precise calculation of neutralino relic density in the minimal supergravity model. We compare the exact formula for the thermal average of the neutralino annihilation cross section times relative velocity with the expansion formula in terms of the temperature, including all the contributions to neutralino annihilation cross section analytically. We confirm that the expansion formula fails badly near s-channel poles. We show that the expansion method causes 5-10 % error even far away from the poles.

Affiliated with

Also associated with

No associations

Rating

Precise calculation of neutralino relic density in the minimal supergravity model 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 Precise calculation of neutralino relic density in the minimal supergravity model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precise calculation of neutralino relic density in the minimal supergravity model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-257676