Upsilonium极化作为理解QCD中质子动力学的试金石
Upsilonium polarization as a touchstone in understanding the proton dynamics in QCD
摘要：
在k_t-因子分解方法的框架下，给出了$Υmesons at the Fermilab Tevatron and CERN LHC is considered, and the predictions on the spin alignment parameter $ α$的产生式.我们认为，测量夸克偶素态的极化可以作为区分QCD中两种相互竞争的部分子动力学理论方法的关键测试。
英文摘要：
In the framework of the k_t-factorization approach, the production of $Υmesons at the Fermilab Tevatron and CERN LHC is considered, and the predictions on the spin alignment parameter $α$ are presented. We argue that measuring the polarization of quarkonium states can serve as a crucial test discriminating two competing theoretical approaches to parton dynamics in QCD.
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