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Top quark induced backgrounds to higgs production in the W W (*) → l l ν ν decay channel at next-to-leading-order in QCD

Frederix, R. LU orcid (2014) In Physical Review Letters 112(8).
Abstract

We present the complete next-to-leading-order (NLO) contributions to the pp→e+νeμ-ν̄μbb̄+X process in the four-flavor scheme, i.e., with massive b quarks, and its contribution to the H→WW(*) →llνν measurement in the 1-jet bin at the LHC. This background process includes top pair, single top, and non-top-quark resonant contributions. The uncertainty at NLO from the renormalization and factorization scale dependence is about +30%-20%. We show that the NLO corrections are relatively small, and that separating this background in top pair, Wt- and b-quark-associated llνν production is a fair approximation.

Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
112
issue
8
article number
082002
publisher
American Physical Society
external identifiers
  • scopus:84894711213
ISSN
0031-9007
DOI
10.1103/PhysRevLett.112.082002
language
English
LU publication?
no
id
9631a243-c28f-4519-85c2-38b4d68ae7bb
date added to LUP
2019-05-28 15:33:05
date last changed
2022-04-26 00:52:55
@article{9631a243-c28f-4519-85c2-38b4d68ae7bb,
  abstract     = {{<p>We present the complete next-to-leading-order (NLO) contributions to the pp→e+νeμ-ν̄μbb̄+X process in the four-flavor scheme, i.e., with massive b quarks, and its contribution to the H→WW(*) →llνν measurement in the 1-jet bin at the LHC. This background process includes top pair, single top, and non-top-quark resonant contributions. The uncertainty at NLO from the renormalization and factorization scale dependence is about +30%-20%. We show that the NLO corrections are relatively small, and that separating this background in top pair, Wt- and b-quark-associated llνν production is a fair approximation.</p>}},
  author       = {{Frederix, R.}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{8}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Top quark induced backgrounds to higgs production in the W W (*) → l l ν ν decay channel at next-to-leading-order in QCD}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.112.082002}},
  doi          = {{10.1103/PhysRevLett.112.082002}},
  volume       = {{112}},
  year         = {{2014}},
}