Effect of the K+ in-medium potential on K+ production in heavy ion collisions

被引：1

作者：

Srisawad, Pornrad ^{[1
]}

Tomuang, Kristiya ^{[1
]}

Chaimongkon, Phacharatouch ^{[2
]}

Zheng, Yu-Ming ^{[3
]}

Xing, Yong Zhong ^{[4
]}

Limphirat, Ayut ^{[5
]}

Kobdaj, Chinorat ^{[5
]}

Yan, Yupeng ^{[5
]}

机构：

[1] Naresuan Univ, Dept Phys, Fac Sci, Phitsanulok 65000, Thailand

[2] Univ Phayao, Sch Sci, Phayao 56000, Thailand

[3] China Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China

[4] Tianshui Normal Univ, Dept Phys, Tianshui 741000, Gansu, Peoples R China

[5] Suranaree Univ Technol, Sch Phys, Nakhon Ratchasima 30000, Thailand

来源：

SIAM PHYSICS CONGRESS 2018 (SPC2018): A CREATIVE PATH TO SUSTAINABLE INNOVATION | 2018年 / 1144卷

关键词：

NUCLEAR-EQUATION; STATE;

D O I：

10.1088/1742-6596/1144/1/012102

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

K+ meson productions in nucleus-nucleus collisions at energies near the kaon production threshold energy were investigated within the quantum molecular dynamics (QMD) model based on the covariant kaon dynamics. We analyzed the rapidity dependence of the direct flow v(1) and the elliptic flow v(2) of K+ meson, and the transverse momentum (p(T)) dependence of v1 for the K+ meson in Ni Ni collisions at 1.91 AGeV, and compared the results with the FOPI data. We observed that the kaon in-medium potential obviously affects the K+ production in nucleus-nucleus collisions. After taking into account the K+ in-medium potential and using the soft equation of state, the theoretical results are in good agreement with the experimental data.

引用

页数：4

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