论文标题
探索具有偏振化衍射J/$ψ$生产的Gluon层析成像
Exploring gluon tomography with polarization dependent diffractive J/$ψ$ production
论文作者
论文摘要
我们使用颜色玻璃冷凝物有效理论研究了RHIC和LHC能量的超递层重离子碰撞中衍射J/$ψ$生产中的方位角不对称。我们的计算成功描述了由Star和Alice测量的方位角平均$ J/ψ$生产横截面。我们进一步预测，非常大的$ \ cos 2ϕ $和$ \ cos 4ϕ $ Azimuthal的衍射$ j/ψ$生产在RHIC和LHC Energies的UPCS以及EIC Energy的EA Collisions中。这些新型的偏振相关可观察物可能会提供互补的信息，以限制大核内的Gluon横向空间分布。与对衍射$ J/ψ$产生的所有先前分析相比，我们理论计算中集成的基本新元素是：双缝干扰效应，相干光子的线性偏振和最终状态软光子辐射效应。
We study azimuthal asymmetries in diffractive J/$ψ$ production in ultraperipheral heavy-ion collisions at RHIC and LHC energies using the color glass condensate effective theory. Our calculation successfully describes azimuthal averaged $J/ψ$ production cross section measured by STAR and ALICE. We further predict very large $\cos 2ϕ$ and $\cos 4ϕ$ azimuthal asymmetries for diffractive $J/ψ$ production both in UPCs at RHIC and LHC energies and in eA collisions at EIC energy. These novel polarization dependent observables may provide complementary information for constraining gluon transverse spatial distribution inside large nuclei. As compared to all previous analysis of diffractive $J/ψ$ production, the essential new elements integrated in our theoretical calculations are: the double-slit interference effect, the linear polarization of coherent photons, and the final state soft photon radiation effect.
