The Cut-Constructible Part of QCD Amplitudes

Details The Cut-Constructible Part of QCD Amplitudes The Cut-Constructible Part of QCD Amplitudes

2006-02-20

arxiv.org/abs/hep-ph/0602178v1

Phys.Rev.D73:105004,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

78 pages, 3 figs

Scientific paper

10.1103/PhysRevD.73.105004

Unitarity cuts are widely used in analytic computation of loop amplitudes in gauge theories such as QCD. We expand upon the technique introduced in hep-ph/0503132 to carry out any finite unitarity cut integral. This technique naturally separates the contributions of bubble, triangle and box integrals in one-loop amplitudes and is not constrained to any particular helicity configurations. Loop momentum integration is reduced to a sequence of algebraic operations. We discuss the extraction of the residues at higher-order poles. Additionally, we offer concise algebraic formulas for expressing coefficients of three-mass triangle integrals. As an application, we compute all remaining coefficients of bubble and triangle integrals for nonsupersymmetric six-gluon amplitudes.

Affiliated with

Also associated with

No associations

Rating

The Cut-Constructible Part of QCD Amplitudes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Cut-Constructible Part of QCD Amplitudes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Cut-Constructible Part of QCD Amplitudes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-520594