论文标题
在HERA和EIC的Electron-Proton碰撞中J/PSI的大p_t含有含有光生启动
Large-P_T inclusive photoproduction of J/psi in electron-proton collisions at HERA and the EIC
论文作者
论文摘要
当交换光子是准真实的时，我们研究了Lepton-Hadron山子山脉的大型横向动量的包含J/PSI的产生，也称为光生生产。我们的计算包括领先的P_T领先V临近领导的Alpha_s校正。特别是，我们首次在Quarkonium Poprodaugtion中使用了J/PSI加上另一个魅力夸克的贡献，可变流动量数量。我们还包括通过脱离壳光子进行的QED诱导的贡献，该贡献在文献中仍然被忽略，我们证明在EIC范围内是高P_T的主要贡献。反过来，我们使用J/PSI+魅力的计算来证明其在未来EIC上的可观察性和EIC敏感性，以探测高X处质子的非扰动魅力含量。
We study the inclusive J/psi production at large transverse momenta at lepton-hadron colliders in the limit when the exchange photon is quasi real, also referred to as photoproduction. Our computation includes the leading-P_T leading-v next-to-leading alpha_s corrections. In particular, we consider the contribution from J/psi plus another charm quark, by employing for the first time in quarkonium photoproduction the variable-flavour-number scheme. We also include a QED-induced contribution via an off-shell photon which remained ignored in the literature and which we show to be the leading contribution at high P_T within the reach of the EIC. In turn, we use our computation of J/psi+charm to demonstrate its observability at the future EIC and the EIC sensitivity to probe the non-perturbative charm content of the proton at high x.
