论文标题
轻夸克模型中质子的重力形式和机械性能
Gravitational form factors and mechanical properties of proton in a light-front quark-diquark model
论文作者
论文摘要
我们获得了重力形式因子（GFF），并研究了它们在描述机械性能的描述中的应用，即，在由软壁ADS/QCD构建的轻正面夸克式模型中，压力的分布，质子内部的剪切力和机械半径的分布。 The GFFs, $A(Q^2)$ and $B(Q^2)$ are found to be consistent with the lattice QCD, while the qualitative behavior of the $D$-term form factor is in agreement with the extracted data from the deeply virtual Compton scattering (DVCS) experiments at JLab, the lattice QCD, and the predictions of different phenomenological models.压力和剪切力分布也与不同模型的结果一致。
We obtain the gravitational form factors (GFFs) and investigate their applications for the description of the mechanical properties, i.e., the distributions of pressures, shear forces inside proton, and the mechanical radius, in a light-front quark-diquark model constructed by the soft-wall AdS/QCD. The GFFs, $A(Q^2)$ and $B(Q^2)$ are found to be consistent with the lattice QCD, while the qualitative behavior of the $D$-term form factor is in agreement with the extracted data from the deeply virtual Compton scattering (DVCS) experiments at JLab, the lattice QCD, and the predictions of different phenomenological models. The pressure and shear force distributions are also consistent with the results of different models.
