Multigluon helicity amplitudes involving a quark loop
- 1 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 49 (9) , 4438-4453
- https://doi.org/10.1103/physrevd.49.4438
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. DOI: http://dx.doi.org/10.1103/PhysRevD.49.4438 © 1994 The American Physical SocietyKeywords
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