论文标题
Charmon Phopoprodaugtion质子的Gluon重力形式因子
Gluon gravitational form factors of protons from charmonium photoproduction
论文作者
论文摘要
受到最近接近阈值的$ J/ψ$光生生产测量的启发，我们讨论了质子的Gluon重力形式（GFF）和内部性能。这项工作对连接能量量张量的Gluon部分的质子GLUON GFF和重夸克光生生产的质子GFF进行了完整分析。特别是，$ j/ψ$差异和总横截面实验数据的全球拟合用于确定GLUON GFF作为平方动量转移$ t $的功能。结合对从深度虚拟康普顿散射实验中提取的$ d $ term形式贡献的夸克贡献，获得了总$ d $ term，以调查其在描述质子机械性能时的应用。这些研究为研究质子GLUON GFF和重要信息提供了独特的观点，以增强GLUON GFF的QCD约束。
Inspired by the recent near-threshold $J/ψ$ photoproduction measurements, we discuss gluon gravitational form factors (GFFs) and internal properties of the proton. This work presents a complete analysis of the proton gluon GFFs connecting the gluon part of the energy-momentum tensor and the heavy quarkonium photoproduction. In particular, a global fitting of the $J/ψ$ differential and total cross section experimental data is used to determine the gluon GFFs as functions of the squared momentum transfer $t$. Combined with the quark contributions to the $D$-term form factor extracted from the deeply virtual Compton scattering experiment, the total $D$-term is obtained to investigate their applications in describing the proton mechanical properties. These studies provide a unique perspective on investigating the proton gluon GFFs and important information for enhancing QCD constraints on the gluon GFFs.
