One-Loop Amplitudes for e^+ e^- to q-bar q Q-bar Q

Preprint

15 October 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9610370

Abstract

We present the one-loop helicity amplitudes for processes involving a vector boson V (V=W,Z, or gamma^*) and four massless quarks, 0 to V q-bar q Q-bar Q, where V couples to a massless lepton pair. These amplitudes are required for next-to-leading order O(alpha_s^3) numerical programs for four-jet production at e^+ e^- colliders, for W, Z or Drell-Yan production in association with two jets at hadron colliders, and for three-jet production in deeply inelastic scattering experiments. We obtained the amplitudes presented here by using their analytic properties to constrain their form.

Keywords

HELICITY AMPLITUDES
LOOP AMPLITUDES
JET PRODUCTION
LOOP HELICITY
COLLIDERS
MASSLESS
BAR

All Related Versions

Version 1, 1996-10-15, ArXiv
Published version: Nuclear Physics B, 489 (1-2), 3.

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