Isovector parton distribution functions of the proton on a superfine lattice
文献类型：期刊论文
| 作者 | Fan, Zhouyou; Gao, Xiang1,2; Li, Ruizi; Lin, Huey-Wen; Karthik, Nikhil1; Mukherjee, Swagato1; Petreczky, Peter1; Syritsyn, Sergey4,5; Yang, Yi-Bo ; Zhang, Rui3
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2020 |
| 卷号 | 102期号:7页码:74504 |
| 关键词 | BOSON |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.102.074504 |
| 英文摘要 | We study isovector unpolarized and helicity parton distribution functions (PDF) of the proton within the framework of large-momentum effective theory. We use a gauge ensemble, generated by the MILC Collaboration, with a superfine lattice spacing of 0.042 fm and a pion mass of 310 MeV, enabling us to simultaneously reach sub-Fermi spatial separations and larger nucleon momenta. We compare the spatial dependence of quasi-PDF matrix elements in different renormalization schemes with the corresponding results of the global fits, obtained using one-loop perturbative matching. We present determinations of the first four moments of the unpolarized and helicity PDFs of proton from the Ioffe-time dependence of the isovector matrix elements, obtained by employing a ratio-based renormalization scheme. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27371]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA 2.Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA 3.Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China 4.Michigan State Univ, Dept Computat Math, E Lansing, MI 48824 USA 5.Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA 6.SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA 7.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Zhouyou,Gao, Xiang,Li, Ruizi,et al. Isovector parton distribution functions of the proton on a superfine lattice[J]. PHYSICAL REVIEW D,2020,102(7):74504. |
| APA | Fan, Zhouyou.,Gao, Xiang.,Li, Ruizi.,Lin, Huey-Wen.,Karthik, Nikhil.,...&Zhang, Rui.(2020).Isovector parton distribution functions of the proton on a superfine lattice.PHYSICAL REVIEW D,102(7),74504. |
| MLA | Fan, Zhouyou,et al."Isovector parton distribution functions of the proton on a superfine lattice".PHYSICAL REVIEW D 102.7(2020):74504. |
入库方式： OAI收割
来源：理论物理研究所
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