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

被引：0
作者：
R. Frederix
S. Frixione
A.S. Papanastasiou
S. Prestel
P. Torrielli
机构：
[1] Technische Universität München,Physik Department T31
[2] INFN — Sezione di Genova,Cavendish Laboratory
[3] University of Cambridge,Dipartimento di Fisica
[4] SLAC National Accelerator Laboratory,undefined
[5] Università di Torino and INFN — Sezione di Torino,undefined
来源：
Journal of High Energy Physics | / 2016卷
关键词：
NLO Computations; QCD Phenomenology;
D O I：
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学科分类号：
摘要：
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.
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  • [1] Zhang C(2011)Effective-field-theory approach to top-quark production and decay Phys. Rev. D 83 034006-undefined
  • [2] Willenbrock S(2012)Single-top t-channel hadroproduction in the four-flavour scheme with POWHEG and aMC@NLO JHEP 09 130-undefined
  • [3] Frederix R(2007)Matching NLO QCD computations with Parton Shower simulations: the POWHEG method JHEP 11 070-undefined
  • [4] Re E(2014)On the NNLO QCD corrections to single-top production at the LHC Phys. Lett. B 736 58-undefined
  • [5] Torrielli P(2010)Next-to-leading order QCD corrections to s-channel single top quark production and decay at the LHC Phys. Rev. D 81 034005-undefined
  • [6] Frixione S(2011)Single top quark production and decay in the t-channel at next-to-leading order at the LHC Phys. Rev. D 83 034019-undefined
  • [7] Nason P(2015)Top-quark processes at NLO in production and decay J. Phys. G 42 015005-undefined
  • [8] Oleari C(2010)Production-decay interferences at NLO in QCD for t-channel single-top production Phys. Rev. D 82 054028-undefined
  • [9] Brucherseifer M(2011)Off-shell effects for t-channel and s-channel single-top production at NLO in QCD Phys. Rev. D 83 094013-undefined
  • [10] Caola F(2013)Single-top t-channel production with off-shell and non-resonant effects Phys. Lett. B 726 223-undefined
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