Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach
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arXiv
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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866910790815055872 |
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| author | Zhu, Zhimin Xu, Siqi Wu, Jiatong Yu, Hongyao Hu, Zhi Lan, Jiangshan Mondal, Chandan Zhao, Xingbo Vary, James P. Collaboration, BLFQ |
| author_facet | Zhu, Zhimin Xu, Siqi Wu, Jiatong Yu, Hongyao Hu, Zhi Lan, Jiangshan Mondal, Chandan Zhao, Xingbo Vary, James P. Collaboration, BLFQ |
| contents | Within the Basis Light-Front Quantization framework, we systematically investigate the subleading twist (twist-3) transverse-momentum-dependent parton distribution functions (TMDs) of the proton beyond the Wandzura-Wilczek (WW) approximation. The subleading twist TMDs are not independent and can be decomposed into twist-2 and genuine twist-3 terms from the equations of motion. The latter involves quark-quark-gluon correlations and contains interferences between two light-front Fock sectors, $|qqq\rangle$ and $|qqqg\rangle$, which are usually neglected in the WW approximation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_13720 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach Zhu, Zhimin Xu, Siqi Wu, Jiatong Yu, Hongyao Hu, Zhi Lan, Jiangshan Mondal, Chandan Zhao, Xingbo Vary, James P. Collaboration, BLFQ High Energy Physics - Phenomenology High Energy Physics - Theory Within the Basis Light-Front Quantization framework, we systematically investigate the subleading twist (twist-3) transverse-momentum-dependent parton distribution functions (TMDs) of the proton beyond the Wandzura-Wilczek (WW) approximation. The subleading twist TMDs are not independent and can be decomposed into twist-2 and genuine twist-3 terms from the equations of motion. The latter involves quark-quark-gluon correlations and contains interferences between two light-front Fock sectors, $|qqq\rangle$ and $|qqqg\rangle$, which are usually neglected in the WW approximation. |
| title | Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2404.13720 |