Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN =2.76 TeV measured with the ATLAS detector

Prompt photon production in √sNN=2.76-TeV Pb+Pb collisions has been measured by the ATLAS experiment at the Large Hadron Collider using data collected in 2011 with an integrated luminosity of 0.14 nb-1. Inclusive photon yields, scaled by the mean nuclear thickness function, are presented as a functi...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Física
Collisions
Photons
Isolated photons
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86260
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86260
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Collisions
Photons
Isolated photons
spellingShingle Física
Collisions
Photons
Isolated photons
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN =2.76 TeV measured with the ATLAS detector
topic_facet Física
Collisions
Photons
Isolated photons
description Prompt photon production in √sNN=2.76-TeV Pb+Pb collisions has been measured by the ATLAS experiment at the Large Hadron Collider using data collected in 2011 with an integrated luminosity of 0.14 nb-1. Inclusive photon yields, scaled by the mean nuclear thickness function, are presented as a function of collision centrality and transverse momentum in two pseudorapidity intervals, |η|<1.37 and 1.52≤|η|<2.37. The scaled yields in the two pseudorapidity intervals, as well as the ratios of the forward yields to those at midrapidity, are compared to the expectations from next-to-leading-order perturbative QCD (pQCD) calculations. The measured cross sections agree well with the predictions for proton-proton collisions within statistical and systematic uncertainties. Both the yields and the ratios are also compared to two other pQCD calculations, one which uses the isospin content appropriate to colliding lead nuclei and another which includes nuclear modifications to the nucleon parton distribution functions.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN =2.76 TeV measured with the ATLAS detector
title_short Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN =2.76 TeV measured with the ATLAS detector
title_full Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN =2.76 TeV measured with the ATLAS detector
title_fullStr Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN =2.76 TeV measured with the ATLAS detector
title_full_unstemmed Centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √sNN =2.76 TeV measured with the ATLAS detector
title_sort centrality, rapidity, and transverse momentum dependence of isolated prompt photon production in lead-lead collisions at √snn =2.76 tev measured with the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86260
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