Axions with Variable Masses

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Axions with variable masses, in the context of a scalar--tensor gravity theory, give a large entropy production during the matter era. The subsequent axion dilution is proportional to their present energy density. Depending on the parameters ($β_I,β_V$) of the model, this dilution relaxes or even eludes the cosmological bound on the axion mass, therefore opening the so--called ``axion window".
9 pages, RevTeX, no figures, preprint IEM-FT-55/92

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/44610

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/9205224
 http://arxiv.org/abs/hep-ph/9205224

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arXiv