23-25 May 2016
Edificio Carolino, Benemérita Universidad Autónoma de Puebla
Mexico/General timezone
Contribution Oral contribution
Coulomb gluons and colour evolution
Speakers
- Dr. Rene ANGELES MARTINEZ
Primary authors
- Prof. Jeffrey FORSHAW (University of Manchester)
- Prof. Michael SEYMOUR (University of Manchester)
- Dr. Rene ANGELES MARTINEZ (University of Manchester)
Files
Description
We briefly review the role Coulomb scattering in partonic QCD amplitudes, its relation to the breaking of collinear factorisation and the importance of such contributions to specific observables involving hadron-hadron initiated processes. Thus motivated, we discuss an expression for the amplitude of a general scattering process with any number of soft gluon emissions, to one-loop accuracy. We study this amplitude in two different ways: as a product of operators ordered in transverse momentum and as a product of loop-expanded currents. We expect that these results will help in the development of techniques to include full colour structure and both the real and imaginary contributions of soft gluons.