论文标题
Quarkonium的生产和两极分化：我们站在哪里？
Quarkonium production and polarization: where do we stand?
论文作者
论文摘要
我们审查了基于非依赖主义有效的现场理论的重夸克生产现象的当前状态，重点介绍了自旋 - 三重$ s $ s $ wave状态，例如$ j/ψ$，$ψ（2s）$和$υ$。我们提供了一些代表性的例子，用于文献中提出的重夸克生产机制，这些典范取决于分析中使用的数据的选择，它们的不同。然后，我们在区分Quarkonium生产的不同可能的情况时讨论了极化的ro方。还引入了其他可观察到的可观察到的物质，例如$η_c$生产，$ j/ψ$加上量规玻色子的相关生产以及Electron-Ion Collider的$ J/ψ$生产。
We review the current status of heavy quarkonium production phenomenology based on nonrelativistic effective field theories, focusing on spin-triplet $S$-wave states such as $J/ψ$, $ψ(2S)$, and $Υ$. We present some representative examples for heavy quarkonium production mechanisms proposed in the literature, which vary significantly depending on the choice of data employed in analyses. We then discuss the rôle of polarization in discriminating between the different possible scenarios for quarkonium production. Other observables that may be useful in pinpointing the production mechanism are also introduced, such as the $η_c$ production, associated production of $J/ψ$ plus a gauge boson, and $J/ψ$ production at the Electron-Ion Collider.
