Production of spin 3/2 particles from vacuum fluctuations
Loading...
Date
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We study the production of spin 3/2 particles in homogeneous scalar and gravitational backgrounds from the mode-mixing Bogolyubov method. Considering only helicity $\pm 3/2$ states we can reduce the problem to a standard Dirac fermion calculation and apply the standard techniques in a straightforward way. As an example we consider a supergravity inflationary model and calculate the spectrum of gravitinos created during preheating at the end of inflation.
4 pages, RevTeX, 1 figure. New comments and references added. Final version to appear in Phys.Rev.Lett
4 pages, RevTeX, 1 figure. New comments and references added. Final version to appear in Phys.Rev.Lett