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Resonant production of fermions in an axial background

Research output: Contribution to journalJournal article

Published

Article number083510
Journal publication date24/03/1999
JournalPhysical Review D
Journal number8
Volume59
Number of pages8
Original languageEnglish

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