Flavor asymmetry from the nonperturbative nucleon sea

Duan, Yihan; Xu, Siqi; Cheng, Shan; Zhao, Xingbo; Li, Yang; Vary, James P.

doi:10.1103/PhysRevC.110.065201

Title: Flavor asymmetry from the nonperturbative nucleon sea

Journal Article · 12 December 2024 · Physical Review. C

DOI: https://doi.org/10.1103/PhysRevC.110.065201 · OSTI ID:2481141

; Xu, Siqi; Cheng, Shan;

;

We demonstrate, in the context of a scalar version of the chiral effective-field theory, that the multisea quark contribution to the nucleon is significant and highly nontrivial, in sharp contrast with the prediction of perturbation theory. The nonperturbative calculation is performed in the Fock sector dependent renormalization scheme on the light front, in which the nonperturbative renormalization is incorporated. The calculation suggests that a fully nonperturbative 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. Published by the American Physical Society 2024

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Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0023692

OSTI ID:: 2481141

Journal Information:: Physical Review. C, Journal Name: Physical Review. C Journal Issue: 6 Vol. 110; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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