https://doi.org/10.1140/epjc/s10052-024-12682-0
Regular Article - Theoretical Physics
Gluon distribution and mass decomposition of the pion and kaon
1
Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
2
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 100049, Beijing, China
c
rwang@impcas.ac.cn
d
xchen@impcas.ac.cn
Received:
4
February
2024
Accepted:
13
March
2024
Published online:
12
April
2024
We present the gluon distribution functions of the pion and kaon in small-x and large-x regions, and compare them with the results obtained from lattice QCD and continuum Schwinger function methods. Whether in the small-x region or the large-x region, our gluon distribution of the pion is consistent with the results of lattice QCD and continuum Schwinger function methods. We also calculate the first four moments of gluon distributions of the pion and kaon at different 
scales. In addition, we present the mass decomposition of the pion and kaon with the dynamical parton distribution functions calculated by the DGLAP equation with parton–parton recombination corrections. The mass structures of the pion and kaon are completely different from that of the proton.
© The Author(s) 2024
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