The dynamics of Affleck-Dine condensate collapse

Enqvist, K. and McDonald, John (2000) The dynamics of Affleck-Dine condensate collapse. Nuclear Physics B, 570 (1-2). pp. 407-422. ISSN 0550-3213

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Abstract

In the MSSM, cosmological scalar field condensates formed along flat directions of the scalar potential (Affleck-Dine condensates) are typically unstable with respect to formation of Q-balls, a type of non-topological soliton. We consider the dynamical evolution of the Affleck-Dine condensate in the MSSM. We discuss the creation and linear growth, in F- and D-term inflation models, of the quantum seed perturbations which in the non-linear regime catalyse the collapse of the condensate to non-topological soliton lumps. We study numerically the evolution of the collapsing condensate lumps and show that the solitons initially formed are not in general Q-balls, but Q-axitons, a pseudo-breather which can have very different properties from Q-balls of the same charge. We calculate the energy and charge radiated from st spherically symmetric condensate lump as it evolves into a Q-axiton. We also discuss the implications for baryogenesis and dark matter. (C) 2000 Elsevier Science B,V. All rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Nuclear Physics B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
83238
Deposited By:
Deposited On:
29 Nov 2016 08:56
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Nov 2020 04:32