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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2410.11574 |
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| _version_ | 1866915381018361856 |
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| author | Peng, Tian-Cai Hu, Zhi Nair, Sreeraj Xu, Siqi Liu, Xiang Mondal, Chandan Zhao, Xingbo Vary, James P. |
| author_facet | Peng, Tian-Cai Hu, Zhi Nair, Sreeraj Xu, Siqi Liu, Xiang Mondal, Chandan Zhao, Xingbo Vary, James P. |
| contents | Within the basis light-front quantization framework, we systematically investigate the unpolarized and longitudinally polarized double parton distributions (DPDs) of quarks inside the proton. We utilize the light-front wave functions of the proton derived in the valence sector from a Hamiltonian quantized on the light-front. The interaction terms of the Hamiltonian consist of a one-gluon exchange interaction at fixed coupling and a three-dimensional confinement potential. Our current analysis yields significant correlations of the quarks' longitudinal momenta with their transverse separation. We also demonstrate that our calculations do not support the commonly used $x-\vec{k}_\perp$ factorization of the DPDs in $x$ and $k_\perp$. Our results are qualitatively consistent with those of other phenomenological models. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_11574 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Double parton distributions of the proton from basis light-front quantization Peng, Tian-Cai Hu, Zhi Nair, Sreeraj Xu, Siqi Liu, Xiang Mondal, Chandan Zhao, Xingbo Vary, James P. High Energy Physics - Phenomenology Within the basis light-front quantization framework, we systematically investigate the unpolarized and longitudinally polarized double parton distributions (DPDs) of quarks inside the proton. We utilize the light-front wave functions of the proton derived in the valence sector from a Hamiltonian quantized on the light-front. The interaction terms of the Hamiltonian consist of a one-gluon exchange interaction at fixed coupling and a three-dimensional confinement potential. Our current analysis yields significant correlations of the quarks' longitudinal momenta with their transverse separation. We also demonstrate that our calculations do not support the commonly used $x-\vec{k}_\perp$ factorization of the DPDs in $x$ and $k_\perp$. Our results are qualitatively consistent with those of other phenomenological models. |
| title | Double parton distributions of the proton from basis light-front quantization |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2410.11574 |