Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment

Measurements of the per-event charged-particle yield as a function of the charged-particle transverse momentum and rapidity are performed using p+Pb collision data collected by the ATLAS experiment at the LHC at a centre-of-mass energy of s NN =5.02TeV. Charged particles are reconstructed over pseud...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Aad, G.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v763_n_p313_Aad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03702693_v763_n_p313_Aad
record_format dspace
spelling todo:paper_03702693_v763_n_p313_Aad2023-10-03T15:29:52Z Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment Aad, G. Measurements of the per-event charged-particle yield as a function of the charged-particle transverse momentum and rapidity are performed using p+Pb collision data collected by the ATLAS experiment at the LHC at a centre-of-mass energy of s NN =5.02TeV. Charged particles are reconstructed over pseudorapidity |η|<2.3 and transverse momentum between 0.1 GeV and 22 GeV in a dataset corresponding to an integrated luminosity of 1 μb −1 . The results are presented in the form of charged-particle nuclear modification factors, where the p+Pb charged-particle multiplicities are compared between central and peripheral p+Pb collisions as well as to charged-particle cross sections measured in pp collisions. The p+Pb collision centrality is characterized by the total transverse energy measured in −4.9<η<−3.1, which is in the direction of the outgoing lead beam. Three different estimations of the number of nucleons participating in the p+Pb collision are carried out using the Glauber model and two Glauber–Gribov colour-fluctuation extensions to the Glauber model. The values of the nuclear modification factors are found to vary significantly as a function of rapidity and transverse momentum. A broad peak is observed for all centralities and rapidities in the nuclear modification factors for charged-particle transverse momentum values around 3 GeV. The magnitude of the peak increases for more central collisions as well as rapidity ranges closer to the direction of the outgoing lead nucleus. © 2016 The Author(s) JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v763_n_p313_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Measurements of the per-event charged-particle yield as a function of the charged-particle transverse momentum and rapidity are performed using p+Pb collision data collected by the ATLAS experiment at the LHC at a centre-of-mass energy of s NN =5.02TeV. Charged particles are reconstructed over pseudorapidity |η|<2.3 and transverse momentum between 0.1 GeV and 22 GeV in a dataset corresponding to an integrated luminosity of 1 μb −1 . The results are presented in the form of charged-particle nuclear modification factors, where the p+Pb charged-particle multiplicities are compared between central and peripheral p+Pb collisions as well as to charged-particle cross sections measured in pp collisions. The p+Pb collision centrality is characterized by the total transverse energy measured in −4.9<η<−3.1, which is in the direction of the outgoing lead beam. Three different estimations of the number of nucleons participating in the p+Pb collision are carried out using the Glauber model and two Glauber–Gribov colour-fluctuation extensions to the Glauber model. The values of the nuclear modification factors are found to vary significantly as a function of rapidity and transverse momentum. A broad peak is observed for all centralities and rapidities in the nuclear modification factors for charged-particle transverse momentum values around 3 GeV. The magnitude of the peak increases for more central collisions as well as rapidity ranges closer to the direction of the outgoing lead nucleus. © 2016 The Author(s)
format JOUR
author Aad, G.
spellingShingle Aad, G.
Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment
author_facet Aad, G.
author_sort Aad, G.
title Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment
title_short Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment
title_full Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment
title_fullStr Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment
title_full_unstemmed Transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s NN =5.02 TeV p + Pb collisions measured by the ATLAS experiment
title_sort transverse momentum, rapidity, and centrality dependence of inclusive charged-particle production in s nn =5.02 tev p + pb collisions measured by the atlas experiment
url http://hdl.handle.net/20.500.12110/paper_03702693_v763_n_p313_Aad
work_keys_str_mv AT aadg transversemomentumrapidityandcentralitydependenceofinclusivechargedparticleproductioninsnn502tevppbcollisionsmeasuredbytheatlasexperiment
_version_ 1807316556900728832

Ejemplares similares