One loop multiphoton helicity amplitudes

Research output: Contribution to journalArticle

72 Citations (Scopus)

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

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photons
positron annihilation
scattering
fermions
configurations

All Science Journal Classification (ASJC) codes

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

Cite this

Mahlon, Gregory. / One loop multiphoton helicity amplitudes. In: Physical Review D. 1994 ; Vol. 49, No. 5. pp. 2197-2210.
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One loop multiphoton helicity amplitudes. / Mahlon, Gregory.

In: Physical Review D, Vol. 49, No. 5, 01.01.1994, p. 2197-2210.

Research output: Contribution to journalArticle

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AB - 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.

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