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Measurements of inclusive and differential cross-sections of combined tt¯ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector

Aad, G ; Bocchetta, Simona LU ; Corrigan, Eric Edward LU ; Doglioni, Caterina LU ; Geisen, Jannik LU orcid ; Gregersen, Kristian LU ; Hansen, E ; Hedberg, Vincent LU ; Jarlskog, Göran LU and Kellermann, Edgar LU , et al. (2020) In Journal of High Energy Physics 2020(9).
Abstract
Inclusive and differential cross-sections for the production of top quarks in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 139 fb−1. The data were collected by the ATLAS detector at the LHC during Run 2 between 2015 and 2018 at a centre-of-mass energy of 13 TeV. The measurements are performed in a fiducial volume defined at parton level. Events with exactly one photon, one electron and one muon of opposite sign, and at least two jets, of which at least one is b-tagged, are selected. The fiducial cross-section is measured to be 39.6−2.3+2.7 fb. Differential cross-sections as functions of several observables are compared with state-of-the-art Monte Carlo simulations and... (More)
Inclusive and differential cross-sections for the production of top quarks in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 139 fb−1. The data were collected by the ATLAS detector at the LHC during Run 2 between 2015 and 2018 at a centre-of-mass energy of 13 TeV. The measurements are performed in a fiducial volume defined at parton level. Events with exactly one photon, one electron and one muon of opposite sign, and at least two jets, of which at least one is b-tagged, are selected. The fiducial cross-section is measured to be 39.6−2.3+2.7 fb. Differential cross-sections as functions of several observables are compared with state-of-the-art Monte Carlo simulations and next-to-leading-order theoretical calculations. These include cross-sections as functions of photon kinematic variables, angular variables related to the photon and the leptons, and angular separations between the two leptons in the event. All measurements are in agreement with the predictions from the Standard Model. [Figure not available: see fulltext.] © 2020, The Author(s). (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hadron-Hadron scattering (experiments), Top physics
in
Journal of High Energy Physics
volume
2020
issue
9
article number
49
publisher
Springer
external identifiers
  • scopus:85090330843
ISSN
1029-8479
DOI
10.1007/JHEP09(2020)049
language
English
LU publication?
yes
id
f72d3516-dba8-4069-bc88-f49ae65c62bc
date added to LUP
2020-10-12 12:27:02
date last changed
2023-04-10 21:15:18
@article{f72d3516-dba8-4069-bc88-f49ae65c62bc,
  abstract     = {{Inclusive and differential cross-sections for the production of top quarks in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 139 fb−1. The data were collected by the ATLAS detector at the LHC during Run 2 between 2015 and 2018 at a centre-of-mass energy of 13 TeV. The measurements are performed in a fiducial volume defined at parton level. Events with exactly one photon, one electron and one muon of opposite sign, and at least two jets, of which at least one is b-tagged, are selected. The fiducial cross-section is measured to be 39.6−2.3+2.7 fb. Differential cross-sections as functions of several observables are compared with state-of-the-art Monte Carlo simulations and next-to-leading-order theoretical calculations. These include cross-sections as functions of photon kinematic variables, angular variables related to the photon and the leptons, and angular separations between the two leptons in the event. All measurements are in agreement with the predictions from the Standard Model. [Figure not available: see fulltext.] © 2020, The Author(s).}},
  author       = {{Aad, G and Bocchetta, Simona and Corrigan, Eric Edward and Doglioni, Caterina and Geisen, Jannik and Gregersen, Kristian and Hansen, E and Hedberg, Vincent and Jarlskog, Göran 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); Top physics}},
  language     = {{eng}},
  number       = {{9}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Measurements of inclusive and differential cross-sections of combined tt¯ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector}},
  url          = {{http://dx.doi.org/10.1007/JHEP09(2020)049}},
  doi          = {{10.1007/JHEP09(2020)049}},
  volume       = {{2020}},
  year         = {{2020}},
}