Isovector parton distribution functions of the proton on a superfine lattice
Abstract
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.
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1671864
- Alternate Identifier(s):
- OSTI ID: 1693404
- Report Number(s):
- BNL-220552-2020-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 074504
- Grant/Contract Number:
- SC0012704; AC05-00OR2272; PHY-1847893; PHY 1653405; AC05-00OR22725
- Resource Type:
- Published Article
- Journal Name:
- Physical Review. D.
- Additional Journal Information:
- Journal Name: Physical Review. D. Journal Volume: 102 Journal Issue: 7; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Fan, Zhouyou, Gao, Xiang, Li, Ruizi, Lin, Huey-Wen, Karthik, Nikhil, Mukherjee, Swagato, Petreczky, Peter, Syritsyn, Sergey, Yang, Yi-Bo, and Zhang, Rui. Isovector parton distribution functions of the proton on a superfine lattice. United States: N. p., 2020.
Web. doi:10.1103/PhysRevD.102.074504.
Fan, Zhouyou, Gao, Xiang, Li, Ruizi, Lin, Huey-Wen, Karthik, Nikhil, Mukherjee, Swagato, Petreczky, Peter, Syritsyn, Sergey, Yang, Yi-Bo, & Zhang, Rui. Isovector parton distribution functions of the proton on a superfine lattice. United States. https://doi.org/10.1103/PhysRevD.102.074504
Fan, Zhouyou, Gao, Xiang, Li, Ruizi, Lin, Huey-Wen, Karthik, Nikhil, Mukherjee, Swagato, Petreczky, Peter, Syritsyn, Sergey, Yang, Yi-Bo, and Zhang, Rui. Mon .
"Isovector parton distribution functions of the proton on a superfine lattice". United States. https://doi.org/10.1103/PhysRevD.102.074504.
@article{osti_1671864,
title = {Isovector parton distribution functions of the proton on a superfine lattice},
author = {Fan, Zhouyou and Gao, Xiang and Li, Ruizi and Lin, Huey-Wen and Karthik, Nikhil and Mukherjee, Swagato and Petreczky, Peter and Syritsyn, Sergey and Yang, Yi-Bo and Zhang, Rui},
abstractNote = {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.},
doi = {10.1103/PhysRevD.102.074504},
journal = {Physical Review. D.},
number = 7,
volume = 102,
place = {United States},
year = {Mon Oct 12 00:00:00 EDT 2020},
month = {Mon Oct 12 00:00:00 EDT 2020}
}
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