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

Frederix, R.; Frixione, S.; Papanastasiou, A. S.; Prestel, S.; Torrielli, P.

doi:10.1007/JHEP06(2016)027

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

Journal Article · Mon Jun 06 00:00:00 EDT 2016 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP06(2016)027· OSTI ID:1260837

Frederix, R. ^[1]; Frixione, S. ^[2]; Papanastasiou, A. S. ^[3]; Prestel, S. ^[4]; Torrielli, P. ^[5]

Technische Univ. Munchen, Garching (Germany)
INFN - Sezione di Genova, Genoa (Italy)
Univ. of Cambridge, Cambridge (United Kingdom)
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Univ. di Torino and INFN - Sezione di Torino, Turin (Italy)

We study the hadroproduction of a Wb 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. Furthermore, 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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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1260837

Journal Information:: Journal of High Energy Physics (Online), Vol. 2016, Issue 6; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 43 works

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