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

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 a...

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Detalles Bibliográficos
Autores principales: Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Orellana, Gonzalo Enrique, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Física
Hadron-Hadron scattering (experiments)
Top physics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131747
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131747
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Hadron-Hadron scattering (experiments)
Top physics
spellingShingle Física
Hadron-Hadron scattering (experiments)
Top physics
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurements of inclusive and differential cross-sections of combined tt͞ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector
topic_facet Física
Hadron-Hadron scattering (experiments)
Top physics
description 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 +2.7 −2.3 fb. Differential cross-sections as functions of several observables are compared with state-ofthe-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.
format Articulo
Articulo
author Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alonso, Francisco
title Measurements of inclusive and differential cross-sections of combined tt͞ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector
title_short Measurements of inclusive and differential cross-sections of combined tt͞ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector
title_full Measurements of inclusive and differential cross-sections of combined tt͞ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector
title_fullStr Measurements of inclusive and differential cross-sections of combined tt͞ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector
title_full_unstemmed Measurements of inclusive and differential cross-sections of combined tt͞ γ and tWγ production in the eμ channel at 13 TeV with the ATLAS detector
title_sort measurements of inclusive and differential cross-sections of combined tt͞ γ and twγ production in the eμ channel at 13 tev with the atlas detector
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/131747
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