Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models

Autores
<div class="autor_fcen" id="4534">Kandus, A.</div>; <div class="autor_fcen" id="1361">Calzetta, E.A.</div>; <div class="autor_fcen" id="5620">Mazzitelli, F.D.</div>; Wagner, C.E.M.
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
Versión publicada
Descripción
We study the generation of primordial magnetic fields, coherent over cosmologically interesting scales, by gravitational creation of charged scalar particles during the reheating period. We show that magnetic fields consistent with those detected by observation may be obtained if the particle mean life τ(s) is in the range 10-14 s ≤ τ(s) ≤ 10-7 s. We apply this mechanism to minimal gauge-mediated supersymmetry-breaking models, in the case in which the lightest stau τ(l) is the next-to-lightest supersymmetric particle. We show that, for a large range of phenomenologically acceptable values of the supersymmetry-breaking scale √F, the generated primordial magnetic field can be strong enough to seed the galactic dynamo. (C) 2000 Elsevier Science B.V.
Fil:Kandus, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Calzetta, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Mazzitelli, F.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Phys Lett Sect B Nucl Elem Part High-Energy Phys 2000;472(3-4):287-294
Materia
article
cosmos
elementary particle
gravity
magnetic field
mathematical analysis
mathematical model
quantum theory
Nivel de accesibilidad
Acceso abierto
Licencia
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
snrd:HASH018bc46857633119237a3f81