Updated determination of light-cone distribution amplitudes of octet baryons in lattice QCD
Authors:
- G. S. BaliGBG. S. Bali
- V. M. BraunVBV. M. Braun
- S. BürgerSBS. Bürger
- M. GöckelerMGM. Göckeler
- M. GruberMGM. Gruber
- F. KaiserFKF. Kaiser
- B. A. KniehlBKB. A. Kniehl
- O. L. VeretinOVO. L. Veretin
- P. WeinPWP. Wein
Preprint
Abstract
We present updated results on the wave function normalization constants and the first moments of the light cone distribution amplitudes for the lowest-lying baryon octet. The analysis is carried out on a large number of $n_f=2+1$ lattice gauge ensembles, including ensembles at physical pion (and kaon) masses. These are spread across five different lattice spacings, enabling a controlled continuum limit. The main differences with respect to our earlier work are the use of two-loop conversion factors to an $\overline{\mathrm{MS}}$-like scheme and of an updated set of low-energy constants in the parametrization of the quark mass dependence. As a byproduct, for the first time, the anomalous dimensions for local three-quark operators with one derivative are obtained.
Keywords
All Related Versions
- Version 1, 2024-11-28, ArXiv
- Version 2, 2025-05-30, ArXiv
- Published version: Physical Review D, 111 (9).