Hadronic effects on the X(3872) meson abundance in heavy ion collisions

被引：50

作者：

Cho, Sungtae ^{[1
]}

Lee, Su Houng ^{[1
]}

机构：

[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea

来源：

PHYSICAL REVIEW C | 2013年 / 88卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

NUCLEUS-NUCLEUS COLLISIONS; QUARK-GLUON PLASMA; EQUILIBRATION; PERSPECTIVE; DIBARYON; SEARCH; MATTER;

D O I：

10.1103/PhysRevC.88.054901

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 study the hadronic effects on the X(3872) meson abundance in heavy ion collisions. We evaluate the absorption cross sections of the X(3872) meson by pions and rho mesons in the hadronic stage of heavy ion collisions, and further investigate the variation in the X(3872) meson abundance during the expansion of the hadronic matter for its two possible quantum number states; J(P) = 1(+) and 2(-). We show that the absorption cross sections and the time evolution of the X(3872) meson abundance are strongly dependent on the structure and quantum number of the X(3872) meson. We thus suggest that studying the abundance of the X(3872) meson in relativistic heavy ion collisions provides a chance to infer its quantum number as well as its structure.

引用

页数：12

共 52 条

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