Multiphoton Production at High Energies in the Standard Model II

Details Multiphoton Production at High Energies in the Standard Model II Multiphoton Production at High Energies in the Standard Model II

1992-10-05

arxiv.org/abs/hep-ph/9210214v1

Phys.Rev. D47 (1993) 1812-1841

Physics

High Energy Physics

High Energy Physics - Phenomenology

73 pages, 2 figures (appended in pictex), CLNS 92/1154

Scientific paper

10.1103/PhysRevD.47.1812

We examine multiphoton production in the electroweak sector of the Standard Model in the high energy limit using the equivalence theorem in combination with spinor helicity techniques. We utilize currents consisting of a charged scalar, spinor, or vector line that radiates $n$ photons. Only one end of the charged line is off shell in these currents, which are known for the cases of like-helicity and one unlike-helicity photons. We obtain a wide variety of helicity amplitudes for processes involving two pairs of charged particles by considering combinations of four currents. We examine the situation with respect to currents which have both ends of the charged line off-shell, and present solutions for the case of like-helicity photons. These new currents may be combined with two of the original currents to produce additional amplitudes involving Higgs, longitudinal $Z$ or neutrino pairs.

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