Resonant production of fermions in an axial background

Details Resonant production of fermions in an axial background Resonant production of fermions in an axial background

1998-11-10

arxiv.org/abs/hep-ph/9811288v2

Phys.Rev.D59:083510,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, LaTeX, 12 figures; new comments and references added, version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.59.083510

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.

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