论文标题
HADRONIC DIJET生产中的不对称者
The Sivers Asymmetry in Hadronic Dijet Production
论文作者
论文摘要
我们研究了横向极化质子 - 蛋白质碰撞中背对背的硫化菌产生中的单个自旋不对称性。这种不对称性是由传入的极化质子中的作用产生的。我们根据横向动量依赖的Parton分布函数提出了QCD形式主义，这使我们能够在扰动计算中恢复出现的大对数。我们可以预测运动区域中与实验相关的重型离子对撞机（RHRIC）相关的辐射二重产生的不对称性。我们进一步计算了选定的正和负喷射箱中的自旋不对称，以将贡献与$ u $ - 和$ d $ quark Singivers功能分开。我们发现，我们的数值结果的符号和大小与RHIC的Star协作的初步结果大致一致。
We study the single spin asymmetry in the back-to-back dijet production in transversely polarized proton-proton collisions. Such an asymmetry is generated by the Sivers functions in the incoming polarized proton. We propose a QCD formalism in terms of the transverse momentum dependent parton distribution functions, which allow us to resum the large logarithms that arise in the perturbative calculations. We make predictions for the Sivers asymmetry of hadronic dijet production at the kinematic region that is relevant to the experiment at the Relativistic Heavy Ion Collider (RHIC). We further compute the spin asymmetries in the selected positive and negative jet charge bins, to separate the contributions from $u$- and $d$-quark Sivers functions. We find that both the sign and size of our numerical results are roughly consistent with the preliminary results from the STAR collaboration at the RHIC.
