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

被引：18

作者：

Song, Jun ^{[1
]}

Gou, Xing-rui ^{[2
]}

Shao, Feng-lan ^{[2
]}

Liang, Zuo-tang ^{[3
,4
]}

机构：

[1] Jining Univ, Dept Phys, Jining 273155, Shandong, Peoples R China

[2] Qufu Normal Univ, Coll Phys & Engn, Jining 273165, Shandong, Peoples R China

[3] Shandong Univ, Sch Phys, MOE, Jinan 250100, Shandong, Peoples R China

[4] Shandong Univ, Key Lab Particle Phys & Particle Irradiat, MOE, Jinan 250100, Shandong, Peoples R China

来源：

PHYSICS LETTERS B | 2017年 / 774卷

基金：

中国国家自然科学基金;

关键词：

Hadronization; Quark combination; Quark gluon plasma; HEAVY-ION COLLISIONS; MULTIPLICITY DEPENDENCE; ELLIPTIC FLOW; HIGH P(T); COALESCENCE; MODEL; PROTON; KAON; PION;

D O I：

10.1016/j.physletb.2017.10.012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that the experimental data of transverse momentum (pp) spectra of identified hadrons released recently by ALICE collaboration for p-Pb collisions at root(NN)-N-S = 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. (c) 2017 The Authors. Published by Elsevier B.V.

引用

页码：516 / 521

页数：6

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