Título:
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Gravitino production during preheating
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Autores:
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López Maroto, Antonio
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science BV, 2000
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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We study the production of gravitinos during the preheating era after inflation by means of the non-perturbative Bogolyubov technique. Considering only the helicity ±3/2 states, the problem is reduced to the simpler Dirac fermions case. We calculate the production in a particular supergravity model in an expanding universe and obtain the spectrum and number density. Finally we compare the results with the nucleosynthesis bounds and extract some consequences.
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En línea:
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https://eprints.ucm.es/id/eprint/27337/1/MarotoAL65preprint.pdf
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