Grand Unification and Time Variation of the Gauge Couplings

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dc.creatorCalmet, X.
dc.creatorFritzsch, H.
dc.date2002-11-26
dc.date.accessioned2026-07-07T03:48:41Z
dc.date.available2026-07-07T03:48:41Z
dc.descriptionAstrophysical indications that the fine structure constant is time dependent are discussed in the framework of grand unification models. A variation of the electromagnetic coupling constant could either be generated by a corresponding time variation of the unified coupling constant or by a time variation of the unification scale, or by both. The case in which the time variation of the electromagnetic coupling constant is caused by a time variation of the unification scale is of special interest. It is supported in addition by recent hints towards a time change of the proton-electron mass ratio. Possible implications for baryogenesis are discussed.
dc.descriptiontalk given at the 10th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY02), Hamburg, Germany, 17-23 June 2002
dc.identifierhttps://arxiv.org/abs/hep-ph/0211421
dc.identifierhttp://arxiv.org/abs/hep-ph/0211421
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/42108
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGrand Unification and Time Variation of the Gauge Couplings
dc.typetext

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