Flavor asymmetry from the non-perturbative nucleon sea
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866910741301297152 |
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| author | Duan, Yihan Xu, Siqi Cheng, Shan Zhao, Xingbo Li, Yang Vary, James P. |
| author_facet | Duan, Yihan Xu, Siqi Cheng, Shan Zhao, Xingbo Li, Yang Vary, James P. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_07755 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Flavor asymmetry from the non-perturbative nucleon sea Duan, Yihan Xu, Siqi Cheng, Shan Zhao, Xingbo Li, Yang Vary, James P. High Energy Physics - Phenomenology Nuclear Theory 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. |
| title | Flavor asymmetry from the non-perturbative nucleon sea |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2404.07755 |