Measurement of jet pT correlations in Pb+Pb and pp collisions at √sNN = 2.76 TeV with the ATLAS detector

Measurements of dijet pT correlations in Pb+Pb and pp collisions at a nucleon–nucleon centre-of- mass energy of √sNN = 2.76 TeV are presented. The measurements are performed with the ATLAS detector at the Large Hadron Collider using Pb+Pb and pp data samples corresponding to integrated luminosities...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
Física
pp collisions
jet pT correlations
Pb+Pb
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/77703
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-77703
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
pp collisions
jet pT correlations
Pb+Pb
ATLAS detector
spellingShingle Ciencias Exactas
Física
pp collisions
jet pT correlations
Pb+Pb
ATLAS detector
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of jet pT correlations in Pb+Pb and pp collisions at √sNN = 2.76 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
pp collisions
jet pT correlations
Pb+Pb
ATLAS detector
description Measurements of dijet pT correlations in Pb+Pb and pp collisions at a nucleon–nucleon centre-of- mass energy of √sNN = 2.76 TeV are presented. The measurements are performed with the ATLAS detector at the Large Hadron Collider using Pb+Pb and pp data samples corresponding to integrated luminosities of 0.14 nb−1 and 4.0 pb−1, respectively. Jets are reconstructed using the anti-kt algorithm with radius parameter values R = 0.3 and R = 0.4. A background subtraction procedure is applied to correct the jets for the large underlying event present in Pb+Pb collisions. The leading and subleading jet transverse momenta are denoted pT1 and pT2 . An unfolding procedure is applied to the two-dimensional (pT1 , pT2 ) distributions to account for experimental effects in the measurement of both jets. Distributions of (1/N)dN/dxJ, where xJ = pT2 /pT1 , are presented as a function of pT1 and collision centrality. The distributions are found to be similar in peripheral Pb+Pb collisions and pp collisions, but highly modified in central Pb+Pb collisions. Similar features are present in both the R = 0.3 and R = 0.4 results, indicating that the effects of the underlying event are properly accounted for in the measurement. The results are qualitatively consistent with expectations from partonic energy loss models.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of jet pT correlations in Pb+Pb and pp collisions at √sNN = 2.76 TeV with the ATLAS detector
title_short Measurement of jet pT correlations in Pb+Pb and pp collisions at √sNN = 2.76 TeV with the ATLAS detector
title_full Measurement of jet pT correlations in Pb+Pb and pp collisions at √sNN = 2.76 TeV with the ATLAS detector
title_fullStr Measurement of jet pT correlations in Pb+Pb and pp collisions at √sNN = 2.76 TeV with the ATLAS detector
title_full_unstemmed Measurement of jet pT correlations in Pb+Pb and pp collisions at √sNN = 2.76 TeV with the ATLAS detector
title_sort measurement of jet pt correlations in pb+pb and pp collisions at √snn = 2.76 tev with the atlas detector
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/77703
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