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arXiv · hep-ph/0601139

Infrared safe definition of jet flavour

Andrea Banfi·Gavin P. Salam·Giulia Zanderighi
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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.

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Andrea Banfi, Gavin P. Salam, Giulia Zanderighi. 2006-01-17. Infrared safe definition of jet flavour. https://doi.org/10.1140/epjc%2Fs2006-02552-4

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