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...
Autores principales: | , , , , , , , |
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Formato: | Articulo |
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2020
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/126721 |
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I19-R120-10915-126721 |
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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 |
_version_ |
1764820451061661698 |