Flavor-dependent photoproduction in heavy-ion collisions

被引：0

作者：

Xie, Zhuoxuan ^{[1
]}

Han, Ruilin ^{[2
]}

机构：

[1] Univ Rochester, Dept Phys, Rochester, NY 14627 USA

[2] Tianjin Xinhua High Sch, Tianjin 300350, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2021年 / 73卷 / 12期

关键词：

relativistic heavy ion collisions; photoproduction; quark gluon plasma; charmonium production; PB-PB COLLISIONS; MAGNETIC-FIELD; CHARM QUARKS; J/PSI;

D O I：

10.1088/1572-9494/ac3231

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Strong electromagnetic fields produced in the non-central heavy-ion collisions can induce vector meson photoproduction. In this paper, we study the photoproduction J/psi and phi mesons in the relativistic heavy-ion collision from ultra-peripheral nuclear collisions to peripheral hadronic heavy ion collisions. And then include both initial hadronic production and thermal production in quark-gluon plasma (QGP). We find, for the charm anti-charm bound state J/psi, the photoproduced J/psi s are mainly in the very low momentum region and clearly exceed the hadronic production. However, considering the thermal production of strange quark anti-quark pairs in QGP produced in relativistic heavy-ion collisions, the photoproduced phi is usually smaller than the thermal production and only evident at very peripheral collisions as even their photoproduction is much larger than J/psi.

引用

页数：6

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