Oscillating scalar-field dark matter in supergravity
High Energy Physics - Phenomenology
2010-02-03 v1 Astrophysics
Abstract
We show that an oscillating scalar field in supergravity of mass of the order of TeV with a nonzero vacuum expectation value ( GeV) can be a candidate of cold dark matter (CDM). To avoid the gravitino problem, we need a low reheating temperature after the primordial inflation. Then, the energy density of the oscillating scalar field satisfies all the requirements for CDM at present in the universe.
Cite
@article{arxiv.hep-ph/0109276,
title = {Oscillating scalar-field dark matter in supergravity},
author = {Osamu Seto and K. Kohri and Takashi Nakamura},
journal= {arXiv preprint arXiv:hep-ph/0109276},
year = {2010}
}
Comments
LaTeX JHEP-format, to appear in JHEP