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Title: Mixed dark matter from axino distribution

Journal Article · · Physical Review, D (Particles Fields); (United States)
 [1];  [2];  [3]
  1. Dipartimento di Fisica dell'Universita di Milano, Via Celoria 16, I-20133 Milano (Italy) I.N.F.N. - Sezione di Milano, I-20133 Milano (Italy)
  2. Department of Physics and Astronomy, University of Massachusetts at Amherst, Amherst, Massachusetts 01003 (United States)
  3. I.N.F.N. - Sezione di Padova, Via Marzolo 8, I-35131 Padova (Italy)

We study the possibility of mixed dark matter obtained through the phase space distribution of a single particle. An example is offered in the context of SUSY models with a Peccei-Quinn symmetry. Axinos in the 100 keV range can naturally have both thermal and nonthermal components. The latter one arises from the lightest neutralino decays and derelativizes at [ital z][similar to]10[sup 4].

OSTI ID:
5093294
Journal Information:
Physical Review, D (Particles Fields); (United States), Vol. 49:8; ISSN 0556-2821
Country of Publication:
United States
Language:
English