One loop multiphoton helicity amplitudes

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Abstract

We use the solutions to the recursion relations for double-off-shell fermion currents to compute helicity amplitudes for n-photon scattering and electron-positron annihilation to photons in the massless limit of QED. The form of these solutions is simple enough to allow all of the integrations to be performed explicitly. For n-photon scattering, we find that unless n=4 the amplitudes for the helicity configurations (+++...+) and (-++...+) vanish to one-loop order.

Original languageEnglish (US)
Pages (from-to)2197-2210
Number of pages14
JournalPhysical Review D
Volume49
Issue number5
DOIs
StatePublished - Jan 1 1994

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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