Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models

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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 l...

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Autores principales: Kandus, A., Calzetta, E.A., Mazzitelli, F.D., Wagner, C.E.M.
Formato: JOUR
Materias:
article
cosmos
elementary particle
gravity
magnetic field
mathematical analysis
mathematical model
quantum theory
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v472_n3-4_p287_Kandus
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03702693_v472_n3-4_p287_Kandus
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spelling todo:paper_03702693_v472_n3-4_p287_Kandus2023-10-03T15:28:49Z Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models Kandus, A. Calzetta, E.A. Mazzitelli, F.D. Wagner, C.E.M. article cosmos elementary particle gravity magnetic field mathematical analysis mathematical model quantum theory 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v472_n3-4_p287_Kandus
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic article
cosmos
elementary particle
gravity
magnetic field
mathematical analysis
mathematical model
quantum theory
spellingShingle article
cosmos
elementary particle
gravity
magnetic field
mathematical analysis
mathematical model
quantum theory
Kandus, A.
Calzetta, E.A.
Mazzitelli, F.D.
Wagner, C.E.M.
Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
topic_facet article
cosmos
elementary particle
gravity
magnetic field
mathematical analysis
mathematical model
quantum theory
description 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.
format JOUR
author Kandus, A.
Calzetta, E.A.
Mazzitelli, F.D.
Wagner, C.E.M.
author_facet Kandus, A.
Calzetta, E.A.
Mazzitelli, F.D.
Wagner, C.E.M.
author_sort Kandus, A.
title Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_short Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_full Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_fullStr Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_full_unstemmed Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_sort cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
url http://hdl.handle.net/20.500.12110/paper_03702693_v472_n3-4_p287_Kandus
work_keys_str_mv AT kandusa cosmologicalmagneticfieldsfromgaugemediatedsupersymmetrybreakingmodels
AT calzettaea cosmologicalmagneticfieldsfromgaugemediatedsupersymmetrybreakingmodels
AT mazzitellifd cosmologicalmagneticfieldsfromgaugemediatedsupersymmetrybreakingmodels
AT wagnercem cosmologicalmagneticfieldsfromgaugemediatedsupersymmetrybreakingmodels
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