25–29 Nov 2024
Huizhou, Guangdong, China
Asia/Shanghai timezone

Flavor asymmetry from the non-perturbative nucleon sea

26 Nov 2024, 17:50
20m
Room-1, Meeting Center, Institute of Modern Physics, Chinese Academy of Sciences (Huizhou, Guangdong, China)

Room-1, Meeting Center, Institute of Modern Physics, Chinese Academy of Sciences

Huizhou, Guangdong, China

Oral Parallel-1

Speaker

Yihan Duan (University of Science and Technology of China)

Description

We demonstrate, in the context of a scalar version of the chiral effective field theory, that the multi-sea quark contribution to the nucleon is significant and highly non-trivial in sharp contrast to the prediction of perturbation theory. The non-perturbative calculation is performed in the Fock sector dependent renormalization scheme on the light front, in which the non-perturbative renormalization is incorporated. The calculation suggests that a fully non-perturbative calculation of the chiral EFT is needed to obtain a robust result to be compared with the recent experimental measurement of flavor asymmetry in the proton.

Authors

Dr Yang Li Yihan Duan (University of Science and Technology of China)

Co-authors

Presentation materials