Infrared safe definition of jet flavour
High Energy Physics - Phenomenology
2009-01-07 v1
Abstract
It is common, in both theoretical and experimental studies, to separately discuss quark and gluon jets. However, even at parton level, widely-used jet algorithms fail to provide an infrared safe way of making this distinction. We examine the origin of the problem, and propose a solution in terms of a new "flavour-kt" algorithm. As well as being of conceptual interest this can be a powerful tool when combining fixed-order calculations with multi-jet resummations and parton showers. It also has applications to studies of heavy-quark jets.
Cite
@article{arxiv.hep-ph/0601139,
title = {Infrared safe definition of jet flavour},
author = {Andrea Banfi and Gavin P. Salam and Giulia Zanderighi},
journal= {arXiv preprint arXiv:hep-ph/0601139},
year = {2009}
}
Comments
22 pages, 7 figures