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Is nonperturbative inflatino production during preheating a real threat to cosmology?

Research output: Contribution to journalJournal article


Article number023516
Journal publication date21/06/2001
JournalPhysical Review D
Number of pages9
Original languageEnglish


We discuss toy models where supersymmetry is broken due to non-vanishing time-varying vacuum expectation value of the inflaton field during preheating. We discuss the production of inflatino the superpartner of inflaton due to vacuum fluctuations and then we argue that they do not survive until nucleosynthesis and decay along with the inflaton to produce a thermal bath after preheating. Thus the only relevant remnant is the helicity \pm 3/2 gravitinos which can genuinely cause problem to nucleosynthesis.

Bibliographic note

© 2001 The American Physical Society 10 pages, Updates to match the accepted version in Phys. Rev. D