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@INPROCEEDINGS{Francis:1037140,
author = {Francis, Anthony and Fritzsch, Patrick and Karur, Rohith
and Kim, Jangho and Pederiva, Giovanni and Pefkou, Dimitra
and Rago, Antonio and Shindler, Andrea and Walker-Loud,
André and Zafeiropoulos, Savvas},
title = {{P}robing higher moments of pion parton distribution
functions},
volume = {466},
publisher = {Sissa Medialab Trieste, Italy},
reportid = {FZJ-2025-00487},
pages = {15},
year = {2024},
comment = {Proceedings of The 41st International Symposium on Lattice
Field Theory — PoS(LATTICE2024)},
booktitle = {Proceedings of The 41st International
Symposium on Lattice Field Theory —
PoS(LATTICE2024)},
abstract = {We present the first numerical investigation of the method
proposed in Ref. [1] to utilize gradient flow to obtain
precise determinations of higher moments of PDFs from
lattice QCD, circumventing power divergent mixing with lower
dimensional operators. We apply this method to obtain
moments of the isovector PDF of the pion using four
Stabilized Wilson Fermion ensembles with mπ≃411 MeV and
lattice spacings a≃0.064,0.077,0.094, and 0.12 fm. We
present preliminary results of ratios of three-point
functions as a function of flow time, which can be used to
extract the ratios ⟨x2⟩/⟨x⟩ and ⟨x3⟩/⟨x⟩.We
find that a significantly higher precision can be achieved
with this method compared to the canonical approach, which
requires boosting and cannot reach higher than the ⟨x3⟩
moment.},
month = {Jul},
date = {2024-07-28},
organization = {The 41st International Symposium on
Lattice Field Theory, Liverpool (UK),
28 Jul 2024 - 3 Aug 2024},
cin = {JSC},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
(SDLs) and Research Groups (POF4-511) / DFG project
G:(GEPRIS)460248186 - PUNCH4NFDI - Teilchen, Universum,
Kerne und Hadronen für die NFDI (460248186)},
pid = {G:(DE-HGF)POF4-5111 / G:(GEPRIS)460248186},
typ = {PUB:(DE-HGF)8 / PUB:(DE-HGF)7},
doi = {10.22323/1.466.0336},
url = {https://juser.fz-juelich.de/record/1037140},
}