标题： 探测光子-核碰撞中的胶子饱和和核结构 显示英文标题

标题： Probing gluon saturation and nuclear structure in photon-nucleus collisions

摘要： 我们在高能光子-核散射中，通过颜色玻璃凝聚框架计算了独占矢量介子光致产生，该过程在RHIC和LHC的超外围重离子碰撞中被实验探测。 当自由参数由HERA的$\gamma+p$数据约束时，我们预测在TeV范围内，相干和非相干光致产生截面都有显著的核抑制。 我们的结果表明，LHC数据在最高碰撞能量下更倾向于更强的饱和效应。 此外，我们展示了超外围碰撞中光子的线性偏振如何在独占产生的矢量介子衰变产物中产生方位调制。 我们展示了这些测量如何探测核几何的细节，特别是铀核的变形结构。 显示英文摘要

摘要： We calculate exclusive vector meson photoproduction within the Color Glass Condensate framework in high-energy photon-nucleus scattering probed experimentally in ultra peripheral heavy ion collisions at RHIC and at the LHC. When the free parameters are constrained by the $\gamma+p$ data from HERA, we predict significant nuclear suppression for both the coherent and incoherent photoproduction cross section in the TeV range. Our results indicate that the LHC data prefers even stronger saturation effects at the highest collision energies. Furthermore, we demonstrate how the linear polarization of photons in ulra peripheral collisions generates azimuthal modulations in the decay products of the exclusively produced vector meson. We show how these measurements can probe details of the nuclear geometry, specifically the deformed structure of the uranium nuclei.