论文标题
在超疗法$ pp $，$ auau $和$ pbpb $ collisions中生产张量胶合球
Production of Tensor Glueball in Ultraperipheral $pp$, $AuAu$ and $PbPb$ Collisions
论文作者
论文摘要
在这项工作中，我们讨论了在质子 - 蛋白质和核核核心超递碰撞碰撞（UPC）中的张量粘合球的产生。横截面是在等效光子近似（EPA）中计算的。总upcs横截面与$γγ\至π^0 g_2 $过程的矩阵元素有关，该元素可以描述为中性亲鼠和张量粘合球$ g_2 $的分布振幅。提出了UPCS横截面和总横截面的快速分布的预测。考虑了整个计算的理论不确定性。我们考虑了最终态张量粘合球的衰减模式，并估计事件数量的数量。我们估计，在LHC上，大约有10个张量粘合球$ g_2 \ to ϕϕ $信号事件。我们还认为，未来HE-LHC和FCC实验的Lead-Lead UPC实验将为测量张量粘合球提供更大的机会。
In this work, we discuss the production of a tensor glueball in the proton-proton and nuclei-nuclei ultraperipheral collisions (UPCs). The cross section is calculated in the equivalent photon approximation (EPA). The total UPCs cross section is related to the matrix elements of $γγ\to π^0 G_2$ process, which can be described as in terms of neutral pion and tensor glueball $G_2$'s distribution amplitudes. The predictions for the rapidity distributions of UPCs cross sections and total cross sections are presented. The theoretical uncertainty of the whole calculation is considered. We consider the decay modes of the final-state tensor glueball and estimate the corresponding number of events. We estimate that there are about 10 tensor glueball $G_2\toϕϕ$ signal events in $PbPb$ collisions at the LHC. We also argue that the lead-lead UPC experiments at future HE-LHC and FCC experiments will provide larger opportunities to measure tensor glueballs.
