Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS

Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at √s<sub>NN</sub> = 5.02 TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28 nb<sup>-1</sup>. Pions a...

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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
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
Física
proton-lead collisions
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87066
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87066
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
proton-lead collisions
ATLAS detector
spellingShingle Ciencias Exactas
Física
proton-lead collisions
ATLAS detector
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
topic_facet Ciencias Exactas
Física
proton-lead collisions
ATLAS detector
description Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at √s<sub>NN</sub> = 5.02 TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28 nb<sup>-1</sup>. Pions are identified using ionization energy loss measured in the pixel detector. Two-particle correlation functions and the extracted source radii are presented as a function of collision centrality as well as the average transverse momentum (k<sub>T</sub>) and rapidity (y*<sub>ππ</sub>) of the pair. Pairs are selected with a rapidity -2 < y*<sub>ππ</sub><1 and with an average transverse momentum 0.1< k<sub>T</sub> <0.8GeV. The effect of jet fragmentation on the two-particle correlation function is studied, and a method using opposite-charge pair data to constrain its contributions to the measured correlations is described. The measured source sizes are substantially larger in more central collisions and are observed to decrease with increasing pair k<sub>T</sub>. A correlation of the radii with the local charged-particle density is demonstrated. The scaling of the extracted radii with the mean number of participating nucleons is also used to compare a selection of initial-geometry models. The cross term Rol is measured as a function of rapidity, and a nonzero value is observed with 5.1σ combined significance for -1 < y*<sub>ππ</sub> <1 in the most central events.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author_sort Alconada Verzini, María Josefina
title Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
title_short Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
title_full Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
title_fullStr Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
title_full_unstemmed Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
title_sort femtoscopy with identified charged pions in proton-lead collisions at √s<sub>nn</sub> = 5.02 tev with atlas
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87066
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