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Journal article

Soft gluons and gauge-invariant subtractions in NLO parton-shower Monte Carlo event generators

Abstract:

We address the problem of decomposing graphs in perturbative QCD into terms associated with particular regions. Motivated by asking how to incorporate next-to-leading order (NLO) QCD corrections in parton-shower algorithms, we require that: (a) The integrand for the hard part is to be integrable even if the corrections are applied to a process that is not infrared and collinear safe, (b) The splitting between the terms should be defined gauge-invariantly. (c) The dependence on cut-offs should...

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Journal:
Journal of High Energy Physics More from this journal
Volume:
5
Issue:
3
Publication date:
2001-01-01
ISSN:
1029-8479
Language:
English
Keywords:
Pubs id:
pubs:192761
UUID:
uuid:a7dcf153-2981-48c7-9b1e-7d631a2a5eef
Local pid:
pubs:192761
Source identifiers:
192761
Deposit date:
2012-12-19

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