Gravitino production during preheating and the equivalence theorem

Details Gravitino production during preheating and the equivalence theorem Gravitino production during preheating and the equivalence theorem

2000-12-07

arxiv.org/abs/hep-ph/0012083v1

Nucl.Phys.Proc.Suppl.95:47-50,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure. Contribution to the Proceedings of the EuroConference on Frontiers in Particle Astrophysics and Cosmology,

Scientific paper

10.1016/S0920-5632(01)01052-0

We review our results on the calculation of helicity 1/2 gravitino production during preheating. The method we present is based on the equivalence between goldstinos and longitudinal gravitinos at high energies. The problem is thus reduced to the standard (Majorana) fermion production after inflation. Comparison between helicity 3/2 and 1/2 production and with the results obtained in the unitary gauge is also presented.

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