论文标题
$ x_j（2900）$状态
$X_J(2900)$ states in a hot hadronic medium
论文作者
论文摘要
在这项工作中，我们研究了$ x_ {j = 0,1}（2900）$状态在重合离子碰撞中的耐药作用。我们利用有效的Lagrangians来估计横截面及其在该过程的热平均值，$x_jπ\ to \ bar {d}^{*} k，k^{*} \ bar {d} $，以及相应的逆过程，以及相应的逆过程，以及考虑到不同的isospins分配的可能性（我们通过求解速率方程来完成分析，以遵循$ x_j（2900）$多重性的时间演变，并确定它们在扩展HADRONIC物质期间如何受到考虑的反应的影响。我们还对$ x_j（2900）$丰度进行了比较，考虑到它们是hadronic分子状态（$ j = 0 $作为$ s $ - $ wave，$ j = 1 $作为$ p $ -Wave）和tetraquark and tetraquark States在Kinetic Freeze Out。
In this work we investigate the hadronic effects on the $X_{J=0,1} (2900)$ states in heavy-ion collisions. We make use of Effective Lagrangians to estimate the cross sections and their thermal averages of the processes $X_J π\to \bar{D}^{*} K , K^{*} \bar{D} $, as well as those of the corresponding inverse processes, considering also the possibility of different isospin assignments ($I=0,1$). We complete the analysis by solving the rate equation to follow the time evolution of the $X_J (2900)$ multiplicities and determine how they are affected by the considered reactions during the expansion of the hadronic matter. We also perform a comparison of the $X_J (2900)$ abundances considering them as hadronic molecular states ($J=0$ as a $S$-wave and $J=1$ as a $P$-wave) and tetraquark states at kinetic freeze-out.
