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Weak boson production amplitude zeros; equalities of the helicity amplitudes
Phys. Rev. D 66, 033004 – Published 13 August, 2002
DOI: https://doi.org/10.1103/PhysRevD.66.033004
Abstract
We investigate the radiation amplitude zeros exhibited by many standard model amplitudes for triple weak gauge boson production processes. We show that production amplitudes have an especially rich structure in terms of zeros; these amplitudes have zeros originating from several different sources. It is also shown that the type-I current null zone is the special case of the equality of the specific helicity amplitudes.
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