论文标题
对$ z_ {cs}}（3985）^ - $ $ $生产重型离子碰撞中的介质介质影响
Hadronic medium effects on $Z_{cs} (3985)^-$ production in heavy-ion collisions
论文作者
论文摘要
在这项工作中，我们研究了多quark状态$ z_ {cs}（3985）^ - $与热室中的轻媒体的相互作用。使用有效的拉格朗日框架，我们估算了真空横截面以及生产过程的热横截面$ \ bar {d} _ {s} _ {s}^{（*）} d_ {s}^{s}^{（*）}结果表明所考虑的过程具有相当大的横截面。最重要的是，$ z_ {cs} $ nil灭的热交叉部分远大于生产的热点部分。此功能可能会对某些可观察到的效果产生相关的影响，例如在重离子碰撞中测量的最终$ z_ {cs} $多重性。
In this work we study the interactions of the multiquark state $Z_{cs} (3985)^-$ with light mesons in a hot hadron gas. Using an Effective Lagrangian framework, we estimate the vacuum cross sections as well as the thermal cross sections of the production processes $ \bar{D}_{s}^{(*)} D_{s}^{(*)} \rightarrow Z_{cs}^- X \, (X=π, K, η) $ and the corresponding inverse reactions. The results indicate that the considered processes have sizeable cross sections. Most importantly, the thermal cross sections for $Z_{cs}$ annihilation are much larger than those for production. This feature might produce relevant effects on some observables, such as the final $Z_{cs}$ multiplicity, measured in heavy ion collisions.
