Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS

Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at sNN=5.02TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28nb-1. Pions are identified using ionization energy loss measured...

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Autor principal:	Aaboud, M.
Formato:	JOUR
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_24699985_v96_n6_p_Aaboud
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_24699985_v96_n6_p_Aaboud
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spelling	todo:paper_24699985_v96_n6_p_Aaboud2023-10-03T16:41:48Z Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS Aaboud, M. Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at sNN=5.02TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28nb-1. 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 (kT) and rapidity (yππ) of the pair. Pairs are selected with a rapidity -2<yππ<1 and with an average transverse momentum 0.1<kT<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 kT. 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<yππ<1 in the most central events. ©2017 CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_24699985_v96_n6_p_Aaboud
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description	Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at sNN=5.02TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28nb-1. 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 (kT) and rapidity (yππ) of the pair. Pairs are selected with a rapidity -2<yππ<1 and with an average transverse momentum 0.1<kT<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 kT. 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<yππ<1 in the most central events. ©2017 CERN.
format	JOUR
author	Aaboud, M.
spellingShingle	Aaboud, M. Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS
author_facet	Aaboud, M.
author_sort	Aaboud, M.
title	Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS
title_short	Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS
title_full	Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS
title_fullStr	Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS
title_full_unstemmed	Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS
title_sort	femtoscopy with identified charged pions in proton-lead collisions at √snn =5.02 tev with atlas
url	http://hdl.handle.net/20.500.12110/paper_24699985_v96_n6_p_Aaboud
work_keys_str_mv	AT aaboudm femtoscopywithidentifiedchargedpionsinprotonleadcollisionsatsnn502tevwithatlas
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Femtoscopy with identified charged pions in proton-lead collisions at √sNN =5.02 TeV with ATLAS

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