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Off-shell single-top production at NLO matched to parton showers

Frederix, R. LU orcid ; Frixione, S. ; Papanastasiou, A. S. ; Prestel, S. LU and Torrielli, P. (2016) In Journal of High Energy Physics 2016(6).
Abstract

Abstract: We study the hadroproduction of a W b pair in association with a light jet, focusing on the dominant t-channel contribution and including exactly at the matrix-element level all non-resonant and off-shell effects induced by the finite top-quark width. Our simulations are accurate to the next-to-leading order in QCD, and are matched to the Herwig6 and Pythia8 parton showers through the MC@NLO method. We present phenomenological results relevant to the 8 TeV LHC, and carry out a thorough comparison to the case of on-shell t-channel single-top production. We formulate our approach so that it can be applied to the general case of matrix elements that feature coloured intermediate resonances and are matched to parton showers.

Please use this url to cite or link to this publication:
author
; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
NLO Computations, QCD Phenomenology
in
Journal of High Energy Physics
volume
2016
issue
6
article number
27
pages
36 pages
publisher
Springer
external identifiers
  • scopus:84976636896
ISSN
1029-8479
DOI
10.1007/JHEP06(2016)027
language
English
LU publication?
no
id
9dfb534e-446c-4ac7-9582-2dcfa7ea2edc
date added to LUP
2019-05-16 13:40:08
date last changed
2022-04-25 23:54:47
@article{9dfb534e-446c-4ac7-9582-2dcfa7ea2edc,
  abstract     = {{<p>Abstract: We study the hadroproduction of a W b pair in association with a light jet, focusing on the dominant t-channel contribution and including exactly at the matrix-element level all non-resonant and off-shell effects induced by the finite top-quark width. Our simulations are accurate to the next-to-leading order in QCD, and are matched to the Herwig6 and Pythia8 parton showers through the MC@NLO method. We present phenomenological results relevant to the 8 TeV LHC, and carry out a thorough comparison to the case of on-shell t-channel single-top production. We formulate our approach so that it can be applied to the general case of matrix elements that feature coloured intermediate resonances and are matched to parton showers.</p>}},
  author       = {{Frederix, R. and Frixione, S. and Papanastasiou, A. S. and Prestel, S. and Torrielli, P.}},
  issn         = {{1029-8479}},
  keywords     = {{NLO Computations; QCD Phenomenology}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{6}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Off-shell single-top production at NLO matched to parton showers}},
  url          = {{http://dx.doi.org/10.1007/JHEP06(2016)027}},
  doi          = {{10.1007/JHEP06(2016)027}},
  volume       = {{2016}},
  year         = {{2016}},
}