Production of high-energy gravitinos during preheating

Details Production of high-energy gravitinos during preheating Production of high-energy gravitinos during preheating

2000-02-25

arxiv.org/abs/hep-ph/0002274v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, LaTeX, uses moriond.sty. Talk given at XXXVth Recontres de Moriond "Energy Densities in the Universe", Les Arcs, Fran

Scientific paper

We present a new technique for the calculation of helicity $\pm 1/2$
gravitino production during preheating. It is based on the equivalence between
goldstinos and helicity $\pm 1/2$ gravitinos at high energies. The problem is
thus reduced to the standard (Majorana) fermion production after inflation.
Comparison with the results obtained in the unitary gauge is also presented.

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