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F-term inflation Q-balls

Research output: Contribution to journalJournal article

Published

Journal publication date2006
JournalPhysical Review Series D
Journal number043501
Volume73
Original languageEnglish

Abstract

A general analysis of Q-ball solutions of the supersymmetric F-term hybrid inflation field equations is given. The solutions consist of a complex inflaton field and a real symmetry-breaking field, with a conserved global charge associated with the inflaton. It is shown that the Q-ball solutions for any value of the superpotential coupling, kappa, may be obtained from those with kappa=1 by rescaling the space coordinates. The complete range of Q-ball solutions for the case kappa=1 is given, from which all possible F-term inflation Q-balls can be obtained. The possible role of F-term inflation Q-balls in cosmology is discussed.