Multigluon helicity amplitudes involving a quark loop

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

We apply the solution to the recursion relation for the double-off-shell quark current to the problem of computing one-loop amplitudes with an arbitrary number of gluons. We are able to compute amplitudes for photon-gluon scattering, electron-positron annihilation to gluons, and gluon-gluon scattering via a quark loop in the case of like-helicity gluons. In addition, we present the result for the one-loop gluon-gluon scattering amplitude when one of the gluons has opposite helicity from the others.

Original languageEnglish (US)
Pages (from-to)4438-4453
Number of pages16
JournalPhysical Review D
Volume49
Issue number9
DOIs
StatePublished - Jan 1 1994

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gluons
quarks
positron annihilation
scattering
scattering amplitude
photons

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

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title = "Multigluon helicity amplitudes involving a quark loop",
abstract = "We apply the solution to the recursion relation for the double-off-shell quark current to the problem of computing one-loop amplitudes with an arbitrary number of gluons. We are able to compute amplitudes for photon-gluon scattering, electron-positron annihilation to gluons, and gluon-gluon scattering via a quark loop in the case of like-helicity gluons. In addition, we present the result for the one-loop gluon-gluon scattering amplitude when one of the gluons has opposite helicity from the others.",
author = "Gregory Mahlon",
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Multigluon helicity amplitudes involving a quark loop. / Mahlon, Gregory.

In: Physical Review D, Vol. 49, No. 9, 01.01.1994, p. 4438-4453.

Research output: Contribution to journalArticle

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N2 - We apply the solution to the recursion relation for the double-off-shell quark current to the problem of computing one-loop amplitudes with an arbitrary number of gluons. We are able to compute amplitudes for photon-gluon scattering, electron-positron annihilation to gluons, and gluon-gluon scattering via a quark loop in the case of like-helicity gluons. In addition, we present the result for the one-loop gluon-gluon scattering amplitude when one of the gluons has opposite helicity from the others.

AB - We apply the solution to the recursion relation for the double-off-shell quark current to the problem of computing one-loop amplitudes with an arbitrary number of gluons. We are able to compute amplitudes for photon-gluon scattering, electron-positron annihilation to gluons, and gluon-gluon scattering via a quark loop in the case of like-helicity gluons. In addition, we present the result for the one-loop gluon-gluon scattering amplitude when one of the gluons has opposite helicity from the others.

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U2 - 10.1103/PhysRevD.49.4438

DO - 10.1103/PhysRevD.49.4438

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JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

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