Measurement of the Z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector

The production of a prompt photon in association with a Z boson is studied in proton-proton collisions at a centre-of-mass energy √ s = 13 TeV. The analysis uses a data sample with an integrated luminosity of 139 fb−1 collected by the ATLAS detector at the LHC from 2015 to 2018. The production cross...

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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)
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/126721
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-126721
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)
spellingShingle Física
Hadron-Hadron scattering (experiments)
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of the Z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector
topic_facet Física
Hadron-Hadron scattering (experiments)
description The production of a prompt photon in association with a Z boson is studied in proton-proton collisions at a centre-of-mass energy √ s = 13 TeV. The analysis uses a data sample with an integrated luminosity of 139 fb−1 collected by the ATLAS detector at the LHC from 2015 to 2018. The production cross-section for the process pp → ` +` −γ + X (` = e, µ) is measured within a fiducial phase-space region defined by kinematic requirements on the photon and the leptons, and by isolation requirements on the photon. An experimental precision of 2.9% is achieved for the fiducial cross-section. Differential crosssections are measured as a function of each of six kinematic variables characterising the ` +` −γ system. The data are compared with theoretical predictions based on next-toleading-order and next-to-next-to-leading-order perturbative QCD calculations. The impact of next-to-leading-order electroweak corrections is also considered.
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 Measurement of the Z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector
title_short Measurement of the Z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector
title_full Measurement of the Z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector
title_fullStr Measurement of the Z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Measurement of the Z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 TeV with the ATLAS detector
title_sort measurement of the z(→ ℓ+ℓ−)γ production cross-section in pp collisions at √s = 13 tev with the atlas detector
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/126721
work_keys_str_mv AT alonsofrancisco measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
AT arduhfranciscoanuar measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
AT dovamariateresa measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
AT hoyajoaquin measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
AT monticellifernandogabriel measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
AT orellanagonzaloenrique measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
AT wahlberghernanpablo measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
AT theatlascollaboration measurementofthezllgproductioncrosssectioninppcollisionsats13tevwiththeatlasdetector
bdutipo_str Repositorios
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