Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

MINLO t-channel single-top plus jet

Carrazza, Stefano ; Frederix, Rikkert LU orcid ; Hamilton, Keith and Zanderighi, Giulia (2018) In Journal of High Energy Physics 2018(9).
Abstract

We present a next-to-leading order accurate simulation of t-channel single-top plus jet production matched to parton showers via the Powheg method. The calculation underlying the simulation is enhanced with a process-specific implementation of the multi-scale improved NLO (Minlo) method, such that it gives physical predictions all through phase space, including regions where the jet additional to the t-channel single-top process is unresolved. We further describe a tuning procedure for the Minlo Sudakov form factor, fitting the coefficient of the first subleading term in its exponent using an artificial neural-network. The latter tuning, implemented as a straightforward event-by-event reweighting, renders the Minlo simulation NLO... (More)

We present a next-to-leading order accurate simulation of t-channel single-top plus jet production matched to parton showers via the Powheg method. The calculation underlying the simulation is enhanced with a process-specific implementation of the multi-scale improved NLO (Minlo) method, such that it gives physical predictions all through phase space, including regions where the jet additional to the t-channel single-top process is unresolved. We further describe a tuning procedure for the Minlo Sudakov form factor, fitting the coefficient of the first subleading term in its exponent using an artificial neural-network. The latter tuning, implemented as a straightforward event-by-event reweighting, renders the Minlo simulation NLO accurate for t-channel single-top observables, in addition to those of the analogous single-top plus jet process.

(Less)
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
2018
issue
9
article number
108
publisher
Springer
external identifiers
  • scopus:85053682654
ISSN
1029-8479
DOI
10.1007/JHEP09(2018)108
language
English
LU publication?
no
id
2da111e2-0345-4df9-9ca3-60107cb6e0ae
date added to LUP
2019-05-28 15:57:48
date last changed
2022-03-10 08:48:58
@article{2da111e2-0345-4df9-9ca3-60107cb6e0ae,
  abstract     = {{<p>We present a next-to-leading order accurate simulation of t-channel single-top plus jet production matched to parton showers via the Powheg method. The calculation underlying the simulation is enhanced with a process-specific implementation of the multi-scale improved NLO (Minlo) method, such that it gives physical predictions all through phase space, including regions where the jet additional to the t-channel single-top process is unresolved. We further describe a tuning procedure for the Minlo Sudakov form factor, fitting the coefficient of the first subleading term in its exponent using an artificial neural-network. The latter tuning, implemented as a straightforward event-by-event reweighting, renders the Minlo simulation NLO accurate for t-channel single-top observables, in addition to those of the analogous single-top plus jet process.</p>}},
  author       = {{Carrazza, Stefano and Frederix, Rikkert and Hamilton, Keith and Zanderighi, Giulia}},
  issn         = {{1029-8479}},
  keywords     = {{NLO Computations; QCD Phenomenology}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{9}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{MINLO t-channel single-top plus jet}},
  url          = {{http://dx.doi.org/10.1007/JHEP09(2018)108}},
  doi          = {{10.1007/JHEP09(2018)108}},
  volume       = {{2018}},
  year         = {{2018}},
}