Regenerating a Symmetry in Asymmetric Dark Matter

Details Regenerating a Symmetry in Asymmetric Dark Matter Regenerating a Symmetry in Asymmetric Dark Matter

2011-09-09

arxiv.org/abs/1109.2164v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figures

Scientific paper

Asymmetric dark matter theories generically allow for mass terms that lead to particle-antiparticle mixing. Over the age of the Universe, dark matter can thus oscillate from a purely asymmetric configuration into a symmetric mix of particles and antiparticles, allowing for pair-annihilation processes. Additionally, requiring efficient depletion of the primordial thermal (symmetric) component generically entails large annihilation rates. We show that unless some symmetry completely forbids dark matter particle-antiparticle mixing, asymmetric dark matter is effectively ruled out for a large range of masses, for almost any oscillation time-scale shorter than the age of the Universe.

Affiliated with

Also associated with

No associations

Rating

Regenerating a Symmetry in Asymmetric 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 Regenerating a Symmetry in Asymmetric Dark Matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regenerating a Symmetry in Asymmetric Dark Matter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-38264