Unpolarized gluon PDF of the nucleon from lattice QCD in the continuum limit
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908620101255168 |
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| author | Chen, Chen Dong, Hongxin Liu, Liuming Sun, Peng Xiong, Xiaonu Yang, Yi-Bo Yao, Fei Zhang, Jian-Hui Zeng, Chunhua Zhong, Shiyi |
| author_facet | Chen, Chen Dong, Hongxin Liu, Liuming Sun, Peng Xiong, Xiaonu Yang, Yi-Bo Yao, Fei Zhang, Jian-Hui Zeng, Chunhua Zhong, Shiyi |
| contents | We report a state-of-the-art lattice QCD calculation of the nucleon gluon parton distribution function employing large-momentum effective theory. The calculation is carried out on the 2+1 flavour CLQCD ensembles with three lattice spacings a={0.105,0.0897,0.0775} fm and pion mass of approximately 300 MeV, covering nulceon momenta up to 1.97 GeV. Distillation technique is applied to improve the signal of two-point correlators. We then apply the state-of-the-art hybrid renormalization and one-loop perturbative matching, and extrapolate the result to the continuum and infinite momentum limit. Our result is in agreement with that from global analysis within errors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_26425 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Unpolarized gluon PDF of the nucleon from lattice QCD in the continuum limit Chen, Chen Dong, Hongxin Liu, Liuming Sun, Peng Xiong, Xiaonu Yang, Yi-Bo Yao, Fei Zhang, Jian-Hui Zeng, Chunhua Zhong, Shiyi High Energy Physics - Lattice We report a state-of-the-art lattice QCD calculation of the nucleon gluon parton distribution function employing large-momentum effective theory. The calculation is carried out on the 2+1 flavour CLQCD ensembles with three lattice spacings a={0.105,0.0897,0.0775} fm and pion mass of approximately 300 MeV, covering nulceon momenta up to 1.97 GeV. Distillation technique is applied to improve the signal of two-point correlators. We then apply the state-of-the-art hybrid renormalization and one-loop perturbative matching, and extrapolate the result to the continuum and infinite momentum limit. Our result is in agreement with that from global analysis within errors. |
| title | Unpolarized gluon PDF of the nucleon from lattice QCD in the continuum limit |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2510.26425 |