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

Autores
Alconada Verzini, María Josefina; Alonso, Francisco; Arduh, Francisco Anuar; Dova, María Teresa; Hoya, Joaquín; Monticelli, Fernando Gabriel; Wahlberg, Hernán Pablo
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at √sNN = 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-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 (y*ππ) of the pair. Pairs are selected with a rapidity -2 < y*ππ<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 < y*ππ <1 in the most central events.
La lista completa de autores que integran el documento puede consultarse en el archivo.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Ciencias Exactas
Física
proton-lead collisions
ATLAS detector
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/87066

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network_name_str SEDICI (UNLP)
spelling Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLASAlconada Verzini, María JosefinaAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaHoya, JoaquínMonticelli, Fernando GabrielWahlberg, Hernán PabloCiencias ExactasFísicaproton-lead collisionsATLAS detectorBose-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.La lista completa de autores que integran el documento puede consultarse en el archivo.Facultad de Ciencias ExactasInstituto de Física La Plata2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/87066enginfo:eu-repo/semantics/altIdentifier/issn/2469-9985info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.96.064908info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:17:09Zoai:sedici.unlp.edu.ar:10915/87066Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:17:10.15SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
title Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
spellingShingle Femtoscopy with identified charged pions in proton-lead collisions at √s<sub>NN</sub> = 5.02 TeV with ATLAS
Alconada Verzini, María Josefina
Ciencias Exactas
Física
proton-lead collisions
ATLAS detector
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
dc.creator.none.fl_str_mv Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author Alconada Verzini, María Josefina
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author_role author
author2 Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
proton-lead collisions
ATLAS detector
topic Ciencias Exactas
Física
proton-lead collisions
ATLAS detector
dc.description.none.fl_txt_mv 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.
La lista completa de autores que integran el documento puede consultarse en el archivo.
Facultad de Ciencias Exactas
Instituto de Física La Plata
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.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/87066
url http://sedici.unlp.edu.ar/handle/10915/87066
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2469-9985
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.96.064908
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
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institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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