Gluon parton distribution of the pion from lattice QCD
We present the first determination of the x-dependent pion gluon distribution from lattice QCD using the pseudo-PDF approach. We use lattice ensembles with 2+1+1 flavors of highly improved staggered quarks (HISQ), generated by MILC Collaboration, at two lattice spacings a≈0.12 and 0.15 fm and three...
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Elsevier
2021
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oai:doaj.org-article:9143449e77fb4f4f8a343fab40d33cb72021-12-04T04:32:43ZGluon parton distribution of the pion from lattice QCD0370-269310.1016/j.physletb.2021.136778https://doaj.org/article/9143449e77fb4f4f8a343fab40d33cb72021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321007188https://doaj.org/toc/0370-2693We present the first determination of the x-dependent pion gluon distribution from lattice QCD using the pseudo-PDF approach. We use lattice ensembles with 2+1+1 flavors of highly improved staggered quarks (HISQ), generated by MILC Collaboration, at two lattice spacings a≈0.12 and 0.15 fm and three pion masses Mπ≈220, 310 and 690 MeV. We use clover fermions for the valence action and momentum smearing to achieve pion boost momentum up to 2.29 GeV. We find that the dependence of the pion gluon parton distribution on lattice spacing and pion mass is mild. We compare our results from the lightest pion mass ensemble with the determination by JAM and xFitter global fits.Zhouyou FanHuey-Wen LinElsevierarticlePhysicsQC1-999ENPhysics Letters B, Vol 823, Iss , Pp 136778- (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
| topic |
Physics QC1-999 |
| spellingShingle |
Physics QC1-999 Zhouyou Fan Huey-Wen Lin Gluon parton distribution of the pion from lattice QCD |
| description |
We present the first determination of the x-dependent pion gluon distribution from lattice QCD using the pseudo-PDF approach. We use lattice ensembles with 2+1+1 flavors of highly improved staggered quarks (HISQ), generated by MILC Collaboration, at two lattice spacings a≈0.12 and 0.15 fm and three pion masses Mπ≈220, 310 and 690 MeV. We use clover fermions for the valence action and momentum smearing to achieve pion boost momentum up to 2.29 GeV. We find that the dependence of the pion gluon parton distribution on lattice spacing and pion mass is mild. We compare our results from the lightest pion mass ensemble with the determination by JAM and xFitter global fits. |
| format |
article |
| author |
Zhouyou Fan Huey-Wen Lin |
| author_facet |
Zhouyou Fan Huey-Wen Lin |
| author_sort |
Zhouyou Fan |
| title |
Gluon parton distribution of the pion from lattice QCD |
| title_short |
Gluon parton distribution of the pion from lattice QCD |
| title_full |
Gluon parton distribution of the pion from lattice QCD |
| title_fullStr |
Gluon parton distribution of the pion from lattice QCD |
| title_full_unstemmed |
Gluon parton distribution of the pion from lattice QCD |
| title_sort |
gluon parton distribution of the pion from lattice qcd |
| publisher |
Elsevier |
| publishDate |
2021 |
| url |
https://doaj.org/article/9143449e77fb4f4f8a343fab40d33cb7 |
| work_keys_str_mv |
AT zhouyoufan gluonpartondistributionofthepionfromlatticeqcd AT hueywenlin gluonpartondistributionofthepionfromlatticeqcd |
| _version_ |
1718373043617660928 |