Universidad Complutense de Madrid
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Production of spin 3/2 particles from vacuum fluctuations



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López Maroto, Antonio y Mazumdar, Anupam (2000) Production of spin 3/2 particles from vacuum fluctuations. Physical review letters, 84 (8). pp. 1655-1658. ISSN 0031-9007

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URL Oficial: http://dx.doi.org/10.1103/PhysRevLett.84.1655

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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 straight forward 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.

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© 2000 The American Physical Society. A. L. M. acknowledges support from the SEUID-Royal Society and (CICYT-AEN97-1693) (Spain). A. M. is supported by INLAKS and ORS. We thank Andrew Liddle for valuable discussions.

Palabras clave:Inflation, Gravitino, Supersymmetry, Supergravity, Cosmology, Universe
Materias:Ciencias > Física
Código ID:27359
Depositado:18 Nov 2014 11:24
Última Modificación:20 Nov 2014 09:36

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