Charged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeV

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We present transverse momentum distributions of charged hadrons produced in Au+Au collisions at sqrt(s_NN) = 200 GeV. The spectra were measured for transverse momenta p_T from 0.25 to 4.5 GeV/c in a rapidity range of 0.2 < y_pi < 1.4. The evolution of the spectra is studied as a function of co...

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Detalles Bibliográficos
Autor principal: Back, B B
Lenguaje:eng
Publicado: 2003
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2003.10.101
http://cds.cern.ch/record/605473
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author Back, B B
author_facet Back, B B
author_sort Back, B B
collection CERN
description We present transverse momentum distributions of charged hadrons produced in Au+Au collisions at sqrt(s_NN) = 200 GeV. The spectra were measured for transverse momenta p_T from 0.25 to 4.5 GeV/c in a rapidity range of 0.2 < y_pi < 1.4. The evolution of the spectra is studied as a function of collision centrality, from 65 to 344 participating nucleons. The results are compared to data from proton-antiproton collisions and Au+Au collisions at lower RHIC energies. We find a significant change of the spectral shape between proton-antiproton and peripheral Au+Au collisions. Comparing peripheral to central Au+Au collisions, we find that the yields at high p_T exhibit approximate scaling with the number of participating nucleons, rather than scaling with the number of binary collisions.
id cern-605473
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2003
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spelling cern-6054732019-09-30T06:29:59Zdoi:10.1016/j.physletb.2003.10.101http://cds.cern.ch/record/605473engBack, B BCharged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeVNuclear Physics - ExperimentWe present transverse momentum distributions of charged hadrons produced in Au+Au collisions at sqrt(s_NN) = 200 GeV. The spectra were measured for transverse momenta p_T from 0.25 to 4.5 GeV/c in a rapidity range of 0.2 < y_pi < 1.4. The evolution of the spectra is studied as a function of collision centrality, from 65 to 344 participating nucleons. The results are compared to data from proton-antiproton collisions and Au+Au collisions at lower RHIC energies. We find a significant change of the spectral shape between proton-antiproton and peripheral Au+Au collisions. Comparing peripheral to central Au+Au collisions, we find that the yields at high p_T exhibit approximate scaling with the number of participating nucleons, rather than scaling with the number of binary collisions.nucl-ex/0302015PHOBOS-2003-02oai:cds.cern.ch:6054732003-02-13
spellingShingle Nuclear Physics - Experiment
Back, B B
Charged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeV
title Charged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeV
title_full Charged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeV
title_fullStr Charged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeV
title_full_unstemmed Charged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeV
title_short Charged hadron transverse momentum distributions in Au+Au collisions at $\sqrt {S_{NN}}$ = 200 GeV
title_sort charged hadron transverse momentum distributions in au+au collisions at $\sqrt {s_{nn}}$ = 200 gev
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1016/j.physletb.2003.10.101
http://cds.cern.ch/record/605473
work_keys_str_mv AT backbb chargedhadrontransversemomentumdistributionsinauaucollisionsatsqrtsnn200gev

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