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Abstract:

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.

Registro:

Documento: Artículo
Título:Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
Autor:Kandus, A.; Calzetta, E.A.; Mazzitelli, F.D.; Wagner, C.E.M.
Filiación:Departamento de Física, Fac. Cs. Ex. y Nat. UBA, Ciudad Universitaria, (1428) Buenos Aires, Argentina
Theory Division, CERN, CH-1211 Geneva 23, Switzerland
High Energy Division, Argonne National Laboratory, Argonne, IL 60439, United States
Palabras clave:article; cosmos; elementary particle; gravity; magnetic field; mathematical analysis; mathematical model; quantum theory
Año:2000
Volumen:472
Número:3-4
Página de inicio:287
Página de fin:294
DOI: http://dx.doi.org/10.1016/S0370-2693(99)01389-1
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_03702693_v472_n3-4_p287_Kandus.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v472_n3-4_p287_Kandus

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Citas:

---------- APA ----------
Kandus, A., Calzetta, E.A., Mazzitelli, F.D. & Wagner, C.E.M. (2000) . Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 472(3-4), 287-294.
http://dx.doi.org/10.1016/S0370-2693(99)01389-1
---------- CHICAGO ----------
Kandus, A., Calzetta, E.A., Mazzitelli, F.D., Wagner, C.E.M. "Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 472, no. 3-4 (2000) : 287-294.
http://dx.doi.org/10.1016/S0370-2693(99)01389-1
---------- MLA ----------
Kandus, A., Calzetta, E.A., Mazzitelli, F.D., Wagner, C.E.M. "Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 472, no. 3-4, 2000, pp. 287-294.
http://dx.doi.org/10.1016/S0370-2693(99)01389-1
---------- VANCOUVER ----------
Kandus, A., Calzetta, E.A., Mazzitelli, F.D., Wagner, C.E.M. Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2000;472(3-4):287-294.
http://dx.doi.org/10.1016/S0370-2693(99)01389-1