Generalized resummation of QCD final-state observables
High Energy Physics - Phenomenology
2009-11-10 v2
Abstract
The resummation of logarithmically-enhanced terms to all perturbative orders is a prerequisite for many studies of QCD final-states. Until now such resummations have always been performed by hand, for a single observable at a time. In this letter we present a general `master' resummation formula (and applicability conditions), suitable for a large class of observables. This makes it possible for next-to-leading logarithmic resummations to be carried out automatically given only a computer routine for the observable. To illustrate the method we present the first next-to-leading logarithmic resummed prediction for an event shape in hadronic dijet production.
Cite
@article{arxiv.hep-ph/0304148,
title = {Generalized resummation of QCD final-state observables},
author = {A. Banfi and G. P. Salam and G. Zanderighi},
journal= {arXiv preprint arXiv:hep-ph/0304148},
year = {2009}
}
Comments
9 pages, 1 figure; v2 includes substantial amplifications and clarifications