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Paper detail

Oscillating scalar-field dark matter in supergravity

We show that an oscillating scalar field in supergravity of mass of the order of $\sim$ TeV with a nonzero vacuum expectation value ($\sim 10^{10}$ 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.

preprint2001arXivOpen access
Osamu SetoK. KohriTakashi Nakamura
astro-phhep-ph
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Osamu SetoK. KohriTakashi Nakamura

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