Constraining Modular Inflation in the MSSM from Giant Q-Ball Formation

Simple item page
dc.creatorBerkooz, Micha
dc.creatorChung, Daniel J. H.
dc.creatorVolansky, Tomer
dc.date2005-07-19
dc.date.accessioned2026-07-07T10:29:34Z
dc.date.available2026-07-07T10:29:34Z
dc.descriptionWe discuss constraints on which flat directions can have large vacuum expectation values (VEVs) after inflation. We show that only flat directions which are not charged under B-L and develop positive pressure due to renormalization group effects can have large VEVs of order $\Mp$. For example, within the MSSM only the $H_uH_d$ flat direction is found to be viable. This strongly constrains the embedding of a broad class of inflationary models in the MSSM or some other supersymmetric extension of the SM. For flat directions with negative pressure, the condensate fragments into very large Q-balls which we call Q-giants. We discuss the formation, evolution and reheating of these Q-giants and show that they decay too late. The analysis requires taking into account new phases of the flat directions, which have been overlooked in the formation and dynamics of the Q-balls. These constraints may be ameliorated by invoking a short period of thermal inflation. The latter, however, is viable in a very narrow window of parameter space and requires fine tuning.
dc.description40 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0507218
dc.identifierhttp://arxiv.org/abs/hep-ph/0507218
dc.identifierPhys.Rev.D73:063526,2006
dc.identifierdoi:10.1103/PhysRevD.73.063526
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177849
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleConstraining Modular Inflation in the MSSM from Giant Q-Ball Formation
dc.typetext

Files

Collections

arXiv