论文标题
QED对的浮力伴随着超核离子碰撞的核解离
Acoplanarity of QED pairs accompanied by nuclear dissociation in ultra-peripheral heavy ion collisions
论文作者
论文摘要
本文调查了超长重离子碰撞中电磁产生的横向动量拓宽作用，并伴有核解离。估计了核对不同中子多重性的电磁解离概率，这可以用作超外外碰撞中的中心性定义（即影响参数估计）。在最低级QED的框架中，计算Dilepton对的链球性是针对超外膜碰撞中不同中子发射方案计算的，这表明有显着的影响参数依赖性。影响参数依赖性的验证对于理解在强雄性沉重离子碰撞中观察到的拓宽作用至关重要。
This paper investigates the transverse momentum broadening effect for electromagnetic production of dileptons in ultra-peripheral heavy ion collisions accompanied by nuclear dissociation. The electromagnetic dissociation probability of nuclei for different neutron multiplicities is estimated, which could serve as a centrality definition (i.e. impact parameter estimate) in ultra-peripheral collisions. In the framework of lowest-order QED, the acoplanarity of dilepton pairs is calculated for different neutron emission scenarios in ultra-peripheral collisions, indicating significant impact-parameter dependence. The verification of impact-parameter dependence is crucially important to understand the broadening effect observed in hadronic heavy-ion collisions.
