arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.08277nucl-thhep-ph
收藏

高能核碰撞中极端条件下的重口味

Heavy flavors under extreme conditions in high energy nuclear collisions

Jiaxing Zhao, Kai Zhou, Shile Chen, Pengfei Zhuang

摘要:

重味强子一直被认为是高能核碰撞产生的夸克-胶子等离子体的探针。本文综述了极端条件下的重味性质及其在重离子实验中的实现。在简要介绍了真空中重味特性的基础上,重点介绍了冷核物质和热核物质对重味的影响,其中冷核物质对重味的影响包括遮蔽效应、克罗宁效应和核吸收效应,热核物质对重味的影响包括德拜屏蔽和再生效应。然后在输运模型和并合模型的框架下讨论了这些介质在核碰撞中引起的开、闭重味的变化,并与核子-核子碰撞作了比较。考虑到近年来广泛研究的非中心核碰撞中产生的极强电磁场和转动场,我们最后研究了它们对高能核碰撞中重味产生和演化的影响。

英文摘要:

Heavy flavor hadrons have long been considered as a probe of the quark gluon plasma created in high energy nuclear collisions. In this paper we review the heavy flavor properties under extreme conditions and the realization in heavy ion experiments. After a short introduction on heavy flavor properties in vacuum, we emphasize the cold and hot nuclear matter effects on heavy flavors, including shadowing effect, Cronin effect and nuclear absorption for the former and Debye screening and regeneration for the latter. Then we discuss, in the frame of transport and coalescence models, these medium induced changes in open and closed heavy flavors in nuclear collisions and the comparison with nucleon-nucleon collisions. Considering the extremely strong electromagnetic and rotational fields generated in non-central nuclear collisions, which are widely studied in recent years, we finally investigate their effects on heavy flavor production and evolution in high energy nuclear collisions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑