Gluon skewed generalized parton distributions of proton from a light-front Hamiltonian approach
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866916569505857536 |
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| author | Zhang, Pengxiang Liu, Yiping Xu, Siqi Mondal, Chandan Zhao, Xingbo Vary, James P. |
| author_facet | Zhang, Pengxiang Liu, Yiping Xu, Siqi Mondal, Chandan Zhao, Xingbo Vary, James P. |
| contents | We calculate all leading-twist gluon generalized parton distributions (GPDs) inside the proton at nonzero skewness using the basis light-front quantization framework. The proton's light-front wave functions are derived from a light-front quantized Hamiltonian incorporating Quantum Chromodynamics inputs. Our results show that the qualitative behaviors of the GPDs are consistent with those from other theoretical calculations. Additionally, we analyze the GPDs in the boost-invariant longitudinal coordinate, $σ=\frac{1}{2} b^- P^+$, which serves as the Fourier conjugate of the skewness. The GPDs in $σ$-space exhibit diffraction patterns, reminiscent of optical wave diffraction. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2501_10119 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Gluon skewed generalized parton distributions of proton from a light-front Hamiltonian approach Zhang, Pengxiang Liu, Yiping Xu, Siqi Mondal, Chandan Zhao, Xingbo Vary, James P. High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory We calculate all leading-twist gluon generalized parton distributions (GPDs) inside the proton at nonzero skewness using the basis light-front quantization framework. The proton's light-front wave functions are derived from a light-front quantized Hamiltonian incorporating Quantum Chromodynamics inputs. Our results show that the qualitative behaviors of the GPDs are consistent with those from other theoretical calculations. Additionally, we analyze the GPDs in the boost-invariant longitudinal coordinate, $σ=\frac{1}{2} b^- P^+$, which serves as the Fourier conjugate of the skewness. The GPDs in $σ$-space exhibit diffraction patterns, reminiscent of optical wave diffraction. |
| title | Gluon skewed generalized parton distributions of proton from a light-front Hamiltonian approach |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2501.10119 |