Affleck-Dine condensate, late thermalization and the gravitino problem

Rouzbeh Allahverdi; Anupam Mazumdar

doi:10.1103/physrevd.78.043511

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arXiv · 0802.4430

Affleck-Dine condensate, late thermalization and the gravitino problem

Rouzbeh Allahverdi·Anupam Mazumdar

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Abstract

In this clarifying note we discuss the late decay of an Affleck-Dine condensate by providing a no-go theorem that attributes to conserved global charges which are identified by the net particle number in fields which are included in the flat direction(s). For a rotating condensate, this implies that: (1) the net baryon/lepton number density stored in the condensate is always conserved, and (2) the total particle number density in the condensate cannot decrease. This reiterates that, irrespective of possible non-perturbative particle production due to $D$-terms in a multiple flat direction case, the prime decay mode of an Affleck-Dine condensate will be perturbative as originally envisaged. As a result, cosmological consequences of flat directions such as delayed thermalization as a novel solution to the gravitino overproduction problem will remain virtually intact.

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Rouzbeh Allahverdi, Anupam Mazumdar. 2008-06-24. Affleck-Dine condensate, late thermalization and the gravitino problem. https://doi.org/10.1103/physrevd.78.043511

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