标题： 深层非弹性产生重夸克 显示英文标题

标题： Deep-inelastic production of heavy quarks

摘要： 深度非弹性产生重夸克在HERA，特别是奇夸克，是测量质子中胶子分布的一个良好信号，在小 $x$ 值情况下。 通过测量重夸克的各种微分分布，由于存在许多尺度，该反应允许进行更加深入的QCD分析。 此外，与典型的动量转移 $Q$ 相比，奇夸克的质量相对较小，这使得可以研究是否以及何时将该夸克视为部分子。 因此，该反应有助于了解微扰QCD的一些最基本方面。 我们讨论上述问题，并根据大积分亮度的条件回顾其实验研究的可行性。 显示英文摘要

摘要： Deep-inelastic production of heavy quarks at HERA, especially charm, is an excellent signal to measure the gluon distribution in the proton at small $x$ values. By measuring various differential distributions of the heavy quarks this reaction permits additional more incisive QCD analyses due to the many scales present. Furthermore, the relatively small mass of the charm quark, compared to the typical momentum transfer $Q$, allows one to study whether and when to treat this quark as a parton. This reaction therefore sheds light on some of the most fundamental aspects of perturbative QCD. We discuss the above issues and review the feasibility of their experimental investigation in the light of a large integrated luminosity.