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Measurement of isolated-photon plus two-jet production in pp collisions at √s = 13 TeV with the ATLAS detector

Aad, G ; Åkesson, Torsten LU orcid ; Bocchetta, Simona LU ; Bryngemark, Lene LU ; Corrigan, Eric Edward LU ; Doglioni, Caterina LU ; Gregersen, Kristian LU ; Hansen, Eva LU ; Hedberg, Vincent LU and Jarlskog, Göran LU , et al. (2020) In Journal of High Energy Physics 2020(3).
Abstract
The dynamics of isolated-photon plus two-jet production in pp collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset corresponding to an integrated luminosity of 36.1 fb−1. Cross sections are measured as functions of a variety of observables, including angular correlations and invariant masses of the objects in the final state, γ + jet + jet. Measurements are also performed in phase-space regions enriched in each of the two underlying physical mechanisms, namely direct and fragmentation processes. The measurements cover the range of photon (jet) transverse momenta from 150 GeV (100 GeV) to 2 TeV. The tree-level plus parton-shower predictions from Sherpa and Pythia as well as the... (More)
The dynamics of isolated-photon plus two-jet production in pp collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset corresponding to an integrated luminosity of 36.1 fb−1. Cross sections are measured as functions of a variety of observables, including angular correlations and invariant masses of the objects in the final state, γ + jet + jet. Measurements are also performed in phase-space regions enriched in each of the two underlying physical mechanisms, namely direct and fragmentation processes. The measurements cover the range of photon (jet) transverse momenta from 150 GeV (100 GeV) to 2 TeV. The tree-level plus parton-shower predictions from Sherpa and Pythia as well as the next-to-leading-order QCD predictions from Sherpa are compared with the measurements. The next-to-leading-order QCD predictions describe the data adequately in shape and normalisation except for regions of phase space such as those with high values of the invariant mass or rapidity separation of the two jets, where the predictions overestimate the data. [Figure not available: see fulltext.] © 2020, The Author(s). (Less)
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publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hadron-Hadron scattering (experiments), Hard scattering, Jets, Photon production
in
Journal of High Energy Physics
volume
2020
issue
3
article number
179
publisher
Springer
external identifiers
  • scopus:85083096465
ISSN
1029-8479
DOI
10.1007/JHEP03(2020)179
language
English
LU publication?
yes
id
8f605a0c-116c-4c22-812a-f9c19fe78551
alternative location
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083096465&doi=10.1007%2fJHEP03%282020%29179&partnerID=40&md5=2598e7f320a3e9f7bbf91467af64d7ca
date added to LUP
2021-01-12 12:11:16
date last changed
2023-04-11 03:44:32
@article{8f605a0c-116c-4c22-812a-f9c19fe78551,
  abstract     = {{The dynamics of isolated-photon plus two-jet production in pp collisions at a centre-of-mass energy of 13 TeV are studied with the ATLAS detector at the LHC using a dataset corresponding to an integrated luminosity of 36.1 fb−1. Cross sections are measured as functions of a variety of observables, including angular correlations and invariant masses of the objects in the final state, γ + jet + jet. Measurements are also performed in phase-space regions enriched in each of the two underlying physical mechanisms, namely direct and fragmentation processes. The measurements cover the range of photon (jet) transverse momenta from 150 GeV (100 GeV) to 2 TeV. The tree-level plus parton-shower predictions from Sherpa and Pythia as well as the next-to-leading-order QCD predictions from Sherpa are compared with the measurements. The next-to-leading-order QCD predictions describe the data adequately in shape and normalisation except for regions of phase space such as those with high values of the invariant mass or rapidity separation of the two jets, where the predictions overestimate the data. [Figure not available: see fulltext.] © 2020, The Author(s).}},
  author       = {{Aad, G and Åkesson, Torsten and Bocchetta, Simona and Bryngemark, Lene and Corrigan, Eric Edward and Doglioni, Caterina and Gregersen, Kristian and Hansen, Eva and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Kellermann, Edgar and Konya, Balazs and Lytken, Else and Mankinen, Katja and Marcon, Caterina and Mjörnmark, Ulf and Mullier, Geoffrey André Adrien and Pöttgen, Ruth and Poulsen, Trine and Skorda, Eleni and Smirnova, Oxana and Zwalinski, L}},
  issn         = {{1029-8479}},
  keywords     = {{Hadron-Hadron scattering (experiments); Hard scattering; Jets; Photon production}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Measurement of isolated-photon plus two-jet production in pp collisions at √s = 13 TeV with the ATLAS detector}},
  url          = {{http://dx.doi.org/10.1007/JHEP03(2020)179}},
  doi          = {{10.1007/JHEP03(2020)179}},
  volume       = {{2020}},
  year         = {{2020}},
}