Total Gluon Helicity from Lattice without Effective Theory Matching
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866916306653020160 |
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| author | Pang, Zhuoyi Yao, Fei Zhang, Jian-Hui |
| author_facet | Pang, Zhuoyi Yao, Fei Zhang, Jian-Hui |
| contents | We propose two approaches for extracting the total gluon helicity contribution to proton spin from lattice QCD, one from local operator matrix elements in a fixed gauge accessible on lattice with feasible renormalization, and the other from gauge-invariant nonlocal gluon correlators. Neither of these approaches requires a matching procedure when converted to the MS scheme. Our proposal resolves a long-standing inconsistency in the literature regarding lattice calculations of the total gluon helicity, and has the potential to greatly facilitate these calculations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_00693 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Total Gluon Helicity from Lattice without Effective Theory Matching Pang, Zhuoyi Yao, Fei Zhang, Jian-Hui High Energy Physics - Phenomenology High Energy Physics - Lattice Nuclear Experiment Nuclear Theory We propose two approaches for extracting the total gluon helicity contribution to proton spin from lattice QCD, one from local operator matrix elements in a fixed gauge accessible on lattice with feasible renormalization, and the other from gauge-invariant nonlocal gluon correlators. Neither of these approaches requires a matching procedure when converted to the MS scheme. Our proposal resolves a long-standing inconsistency in the literature regarding lattice calculations of the total gluon helicity, and has the potential to greatly facilitate these calculations. |
| title | Total Gluon Helicity from Lattice without Effective Theory Matching |
| topic | High Energy Physics - Phenomenology High Energy Physics - Lattice Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2404.00693 |