Axion string cosmology and its controversies

dc.creatorBattye, R. A.
dc.creatorShellard, E. P. S.
dc.date1999-09-14
dc.date.accessioned2026-07-07T02:33:15Z
dc.date.available2026-07-07T02:33:15Z
dc.descriptionUnderstanding axion cosmology has important experimental consequences since it constrains the range of allowed values for the axion mass. In the standard thermal scenario, which assumes Peccei-Quinn symmetry restoration after inflation, an axion string network forms at the phase transition $T\sim\fa$ and then radiatively decays into a cosmological background of axions. Under standard assumptions for the evolution of this string network and the radiation from it, axions must have a mass of $\ma\sim 100μ{\rm eV}$ with large specified uncertainties. We discuss critically the various suggestions in the literature that the axion mass migh be lighter.
dc.description8 Pages
dc.identifierhttps://arxiv.org/abs/astro-ph/9909231
dc.identifierhttp://arxiv.org/abs/astro-ph/9909231
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14771
dc.subjectAstrophysics
dc.titleAxion string cosmology and its controversies
dc.typetext

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