The research team of Feng Xu and Liu Chuan from the School of Physics has made new progress in the study of lattice quantum chromodynamics of nuclear structures

Nucleons (including protons and neutrons) are the basic substances that make up the world, and their internal structures are very complex
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Studying the composition of quarks and gluons of nucleons is of great significance for understanding the basic laws of strong interaction and the deep structure of matter; this is also the future big scientific device - China Polarized Electron Ion Collider (EicC) and American Polarized Electron One of the important physical targets of the ion collider (EIC)

In the abundant structural information of nucleons, the lateral momentum-dependent soft function is used to describe the soft gluon effect related to the lateral momentum distribution; the determination of this physical quantity can be used to predict the Drell-Yan process and semi-single-lift depth inelastic scattering experiments Provides important theoretical input
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The Lattice research team led by Prof.

Nucleon Lateral Momentum Dependent Soft Function Calculated by Lattice QCD

On February 8, 2022, the related research work was published online in Physical Review Letters under the title " Lattice QCD Study of transverse-momentum dependent soft function ".

The above research work has been supported by the National Natural Science Foundation of China, the National Key R&D Program and the Collaborative Innovation Center for Quantum Matter Science, the High Energy Physics Research Center of Peking University, and the National Supercomputing Tianjin Center