Hybrid renormalization in lattice calculation of baryon LCDAs

Abstract

At the 2025 International Conference on the Structure of Baryons (Baryons 2025), I presented our recent progress in lattice calculations of baryon light-cone distribution amplitudes (LCDAs). In Ref.[1], we implemented a novel hybrid renormalization scheme for octet baryons, leading to reliable determinations of quasi-distribution amplitudes (quasi-DAs). The calculations were performed on $N_f=2+1$ ensembles with stout-smeared clover fermions and a Symanzik-improved gauge action at three lattice spacings, $a=0.052,0.077,0.105$ fm. The hybrid renormalization removes linear divergences in lattice matrix elements and yields smooth, self-consistent quasi-DAs, providing a solid foundation for LaMET-based extractions of baryon LCDAs. Results at the continuum limit and physical pion mass will be reported in the near future.

Proceeding of the 2025 International Conference on the Structure of Baryons (Baryons 2025), 10-14 November 2025, ICC, Jeju, South Korea

References in corpus (5)

• Light-cone distribution amplitudes of octet baryons from lattice QCD
• Observation of charge-parity symmetry breaking in baryon decays
• Light-cone distribution amplitudes of a light baryon in large-momentum effective theory
• Higher order light-cone distribution amplitudes of the Lambda baryon
• Updated determination of light-cone distribution amplitudes of octet baryons in lattice QCD