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Resonant production of fermions in an axial background

Research output: Contribution to journalJournal article

Published

Article number083510
<mark>Journal publication date</mark>24/03/1999
<mark>Journal</mark>Physical Review D
Issue8
Volume59
Number of pages8
<mark>Original language</mark>English

Abstract

We consider the resonant production of fermions from an oscillating axial background. The classical evolution of the axial field is given by that of a massive pseudovector field, as suggested by the renormalizability of the theory. We look upon both the massive and the massless fermion production from a perturbative point of view. We obtain the corresponding spectrum and angular distributions for the different spins or helicities in the particular case of a spatial-like axial field. We also extend our study to the non-perturbative regime in the massless case and compare the results with the perturbative ones.

Bibliographic note

© 1999 The American Physical Society 16 pages, LaTeX, 12 figures; new comments and references added, version to appear in Phys. Rev. D