Measurement of longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector

Measurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range |η| < 2.4 using 7 μb−1 and 470 μb−1 of Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV, respectively, recorded by the ATLAS detector at the LHC. It is found that the correlation between the...

Descripción completa

Guardado en:
Detalles Bibliográficos
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: 2018
Materias:
Ciencias Exactas
longitudinal flow correlations
Pb+Pb collisions
ATLAS detector
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78344
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78344
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
longitudinal flow correlations
Pb+Pb collisions
ATLAS detector
Física
spellingShingle Ciencias Exactas
longitudinal flow correlations
Pb+Pb collisions
ATLAS detector
Física
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 longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector
topic_facet Ciencias Exactas
longitudinal flow correlations
Pb+Pb collisions
ATLAS detector
Física
description Measurements of longitudinal flow correlations are presented for charged particles in the pseudorapidity range |η| < 2.4 using 7 μb−1 and 470 μb−1 of Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV, respectively, recorded by the ATLAS detector at the LHC. It is found that the correlation between the harmonic flow coefficients vn measured in two separated η intervals does not factorise into the product of single-particle coefficients, and this breaking of factorisation, or flow decorrelation, increases linearly with the η separation between the intervals. The flow decorrelation is stronger at 2.76 TeV than at 5.02 TeV. Higher-order moments of the correlations are also measured, and the corresponding linear coefficients for the kth-moment of the vn are found to be proportional to k for v3, but not for v2. The decorrelation effect is separated into contributions from the magnitude of vn and the event-plane orientation, each as a function of η. These two contributions are found to be comparable. The longitudinal flow correlations are also measured between vn of different order in n. The decorrelations of v2 and v3 are found to be independent of each other, while the decorrela- tions of v4 and v5 are found to be driven by the nonlinear contribution from v2 2 and v2v3, respectively.
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 longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector
title_short Measurement of longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector
title_full Measurement of longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector
title_fullStr Measurement of longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector
title_full_unstemmed Measurement of longitudinal flow decorrelations in Pb+Pb collisions at √sNN = 2.76 and 5.02 TeV with the ATLAS detector
title_sort measurement of longitudinal flow decorrelations in pb+pb collisions at √snn = 2.76 and 5.02 tev with the atlas detector
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/78344
work_keys_str_mv AT alconadaverzinimariajosefina measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
AT alonsofrancisco measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
AT arduhfranciscoanuar measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
AT dovamariateresa measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
AT hoyajoaquin measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
AT monticellifernandogabriel measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
AT wahlberghernanpablo measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
AT theatlascollaboration measurementoflongitudinalflowdecorrelationsinpbpbcollisionsatsnn276and502tevwiththeatlasdetector
bdutipo_str Repositorios
_version_ 1764820485772673025

Ejemplares similares