Coannihilation Effects and Relic Abundance of Higgsino-Dominant LSPs

Details Coannihilation Effects and Relic Abundance of Higgsino-Dominant LSPs Coannihilation Effects and Relic Abundance of Higgsino-Dominant LSPs

1992-08-26

arxiv.org/abs/hep-ph/9208251v1

Phys.Lett.B298:120-126,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 8 figures (not included, but available on request), in LaTeX, TU-409

Scientific paper

10.1016/0370-2693(93)91717-2

We calculate the relic abundance of Higgsino-dominant lightest
superparticles, taking account of coannihilations with the superparticles which
are almost degenerate with the lightest one. We show that their relic abundance
is reduced drastically by the coannihilation processes and hence they are
cosmologically of no interest.

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