Production of Spin 3/2 Particles from Vacuum Fluctuations

Antonio L. Maroto and Anupam Mazumdar
Phys. Rev. Lett. 84, 1655 – Published 21 February 2000
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Abstract

We study the production of spin 3/2 particles in homogeneous scalar and gravitational backgrounds using the mode-mixing Bogolyubov method. Considering only the helicity ±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 specific supergravity inflationary model and calculate the spectrum of gravitinos created during preheating at the end of inflation.

  • Received 9 April 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.1655

©2000 American Physical Society

Authors & Affiliations

Antonio L. Maroto

  • Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QJ, United Kingdom

Anupam Mazumdar

  • Astrophysics Group, Blackett Laboratory, Imperial College, London SW7 2BZ, United Kingdom

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Vol. 84, Iss. 8 — 21 February 2000

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