Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeV

We show that the experimental data of transverse momentum (pT) spectra of identified hadrons released recently by ALICE collaboration for p–Pb collisions at sNN=5.02 TeV exhibit a distinct universal behavior — the quark number scaling. We further show that the scaling is a direct consequence of quar...

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Main Authors: Jun Song, Xing-rui Gou, Feng-lan Shao, Zuo-tang Liang
Format: Article
Language:English
Published: Elsevier 2017-11-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269317308249
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author Jun Song
Xing-rui Gou
Feng-lan Shao
Zuo-tang Liang
author_facet Jun Song
Xing-rui Gou
Feng-lan Shao
Zuo-tang Liang
author_sort Jun Song
collection DOAJ
description We show that the experimental data of transverse momentum (pT) spectra of identified hadrons released recently by ALICE collaboration for p–Pb collisions at sNN=5.02 TeV exhibit a distinct universal behavior — the quark number scaling. We further show that the scaling is a direct consequence of quark (re-)combination mechanism of hadronization and can be regarded as a strong indication of the existence of the underlying source with constituent quark degree of freedom for the production of hadrons in p–Pb collisions at such high energies. We make also predictions for production of other hadrons.
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spelling doaj.art-80c1c8d709354ab3852b359041d58adc2022-12-21T18:55:22ZengElsevierPhysics Letters B0370-26931873-24452017-11-01774C51652110.1016/j.physletb.2017.10.012Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeVJun Song0Xing-rui Gou1Feng-lan Shao2Zuo-tang Liang3Department of Physics, Jining University, Shandong 273155, ChinaCollege of Physics and Engineering, Qufu Normal University, Shandong 273165, ChinaCollege of Physics and Engineering, Qufu Normal University, Shandong 273165, ChinaSchool of Physics & Key Laboratory of Particle Physics and Particle Irradiation (MOE), Shandong University, Jinan, Shandong 250100, ChinaWe show that the experimental data of transverse momentum (pT) spectra of identified hadrons released recently by ALICE collaboration for p–Pb collisions at sNN=5.02 TeV exhibit a distinct universal behavior — the quark number scaling. We further show that the scaling is a direct consequence of quark (re-)combination mechanism of hadronization and can be regarded as a strong indication of the existence of the underlying source with constituent quark degree of freedom for the production of hadrons in p–Pb collisions at such high energies. We make also predictions for production of other hadrons.http://www.sciencedirect.com/science/article/pii/S0370269317308249HadronizationQuark combinationQuark gluon plasma
spellingShingle Jun Song
Xing-rui Gou
Feng-lan Shao
Zuo-tang Liang
Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeV
Physics Letters B
Hadronization
Quark combination
Quark gluon plasma
title Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeV
title_full Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeV
title_fullStr Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeV
title_full_unstemmed Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeV
title_short Quark number scaling of hadronic pT spectra and constituent quark degree of freedom in p–Pb collisions at sNN=5.02 TeV
title_sort quark number scaling of hadronic pt spectra and constituent quark degree of freedom in p pb collisions at snn 5 02 tev
topic Hadronization
Quark combination
Quark gluon plasma
url http://www.sciencedirect.com/science/article/pii/S0370269317308249
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