Particle production from axial fields

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López Maroto, Antonio (1999) Particle production from axial fields. Physical Review D, 59 (6). ISSN 0556-2821

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Official URL: http://dx.doi.org/10.1103/PhysRevD.59.063501




Abstract

We study the production of massive fermions in arbitrary vector and axial-vector classical backgrounds using effective action techniques. A perturbative calculation shows the different features of each field and in particular it is seen that pure temporal axial fields can produce particles whereas it is not possible for a pure vector background. We also analyze from a non-perturbative point of view a particular configuration with constant electric and axial fields and show that the presence of the axial background inhibits the production from the electric field. [S0556-2821(99)04504-X].


Item Type:Article
Additional Information:

© 1999 The American Physical Society. I thank Ed. Copeland and A. Dobado for useful suggestions. This work has been partially supported by the Ministerio de Educación y Ciencia (Spain) (CICYT AEN96-1634). The author also acknowledges support from SEUID-Royal Society.

Uncontrolled Keywords:String cosmology, Inflation, Universe, Torsion, Vacuum, Model, Time
Subjects:Sciences > Physics
ID Code:27378
Deposited On:18 Nov 2014 11:28
Last Modified:20 Nov 2014 09:34

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