Signatures of the vortical quark-gluon plasma in hadron yields

被引：7

作者：

Taya, Hidetoshi ^{[1
,2
,3
]}

Park, Aaron ^{[4
,5
]}

Cho, Sungtae ^{[6
]}

Gubler, Philipp ^{[7
]}

Hattori, Koichi ^{[8
]}

Hong, Juhee ^{[4
,5
]}

Huang, Xu-Guang ^{[1
,2
,9
]}

Lee, Su Houng ^{[4
,5
]}

Monnai, Akihiko ^{[10
,11
]}

Ohnishi, Akira ^{[8
]}

Oka, Makoto ^{[7
]}

Yang, Di-Lun ^{[12
]}

机构：

[1] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[2] Fudan Univ, Ctr Field Theory & Particle Phys, Shanghai 200433, Peoples R China

[3] Keio Univ, Res & Educ Ctr Nat Sci, Kohoku Ku, Yokohama, Kanagawa 2238521, Japan

[4] Yonsei Univ, Dept Phys, Seoul 03722, South Korea

[5] Yonsei Univ, Inst Phys & Appl Phys, Seoul 03722, South Korea

[6] Kangwon Natl Univ, Div Sci Educ, Chunchon 24341, South Korea

[7] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[8] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068317, Japan

[9] Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat, MOE, Shanghai 200433, Peoples R China

[10] High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies, KEK Theory Ctr, Tsukuba, Ibaraki 3050801, Japan

[11] Japan Womens Univ, Dept Math & Phys Sci, Tokyo 1128681, Japan

[12] Keio Univ, Fac Sci & Technol, Yokohama, Kanagawa 2238522, Japan

来源：

PHYSICAL REVIEW C | 2020年 / 102卷 / 02期

基金：

日本学术振兴会; 新加坡国家研究基金会;

关键词：

SPIN; POLARIZATION; FIELD;

D O I：

10.1103/PhysRevC.102.021901

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We investigate the hadron production from the vortical quark-gluon plasma created in heavy-ion collisions. Based on the quark-coalescence and statistical hadronization models, we show that total hadron yields summed over the spin components are enhanced by the local vorticity with quadratic dependence. The enhancement factor amounts to be a few percent and may be detectable within current experimental sensitivities. We also show that the effect is stronger for hadrons with larger spin, and thus propose a new signature of the local vorticity, which may be detected by the yield ratio of distinct hadron species having different spins such as phi and eta'. The vorticity dependence of hadron yields seems robust, with consistent predictions in both of the hadron production mechanisms for reasonable values of the vorticity strength estimated for heavy-ion collisions.

引用

页数：6

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