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Infrared-safe definition of jet flavour

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.
Publication status:
Published

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Publisher copy:
10.1140/epjc/s2006-02552-4

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Journal:
EUROPEAN PHYSICAL JOURNAL C
Volume:
47
Issue:
1
Pages:
113-124
Publication date:
2006-07-05
DOI:
EISSN:
1434-6052
ISSN:
1434-6044
URN:
uuid:6f93f155-7d2a-409e-a9db-4961f81048d3
Source identifiers:
11365
Local pid:
pubs:11365
Language:
English

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