论文标题
$υ（NS）$ HADRRODUFUCT在QCD近代领先订单上的两极分化的完整研究
The complete study on polarization of $Υ(nS)$ hadroproduction at QCD next-to-leading order
论文作者
论文摘要
将非同性量子染色体动力学分解形式主义应用于$υ（1s，2s，3s）$ HADRRODUCTION，对偏光参数$λ_θ$，$λ_{θ取球，$λ_，$λ_D的完整分析在QCD的下一步介绍。通过从实验数据中提取的长距离矩阵元素的生产率和极化参数$λ_θ$ $υ$ hadrrododuction的$λ_θ$ hadrroductuction $λ_{θϕ} $和$ λ_ϕ $ collicity和collins-soper框架为测量参数提供了很好的描述。在我们的计算中，帧不变参数$ \tildeλ$在两个帧中是一致的。最后，可以指出，可用的实验数据和相应的理论预测之间存在$ \tildeλ$的差异。
Applying the nonrelativistic quantum chromodynamics factorization formalism to the $Υ(1S,2S,3S)$ hadroproduction, a complete analysis on the polarization parameters $λ_θ$, $λ_{θϕ}$, $λ_ϕ$ for the production are presented at QCD next-to-leading order. With the long-distance matrix elements extracted from experimental data for the production rate and polarization parameter $λ_θ$ of $Υ$ hadroproduction, our results provide a good description for the measured parameters $λ_{θϕ}$ and $λ_ϕ$ in both the helicity and the Collins-Soper frames. In our calculations the frame invariant parameter $\tildeλ$ is consistent in the two frames. Finally, it is pointed out that there are discrepancies for $\tildeλ$ between available experimental data and corresponding theoretical predictions.
