English

Hybrid Renormalization with Gradient Flow for Baryon Quasi-Distribution Amplitudes

High Energy Physics - Phenomenology 2025-10-17 v1

Abstract

We establish a factorization relation between baryon quasi-distribution amplitudes (quasi-DAs) defined with gradient flow and their counterparts renormalized in the MS\overline{MS}\, scheme. Working beyond the small flow-time limit, we perform a complete one-loop calculation that yields the full matching kernel and the associated Wilson-line linear divergence for flowed quasi-DAs. Building on this relation, we formulate a hybrid renormalization scheme that combines ratio scheme with gradient-flow matching. The framework enables a systematic connection between lattice QCD matrix elements and continuum baryon quasi-DAs, with reduced renormalization uncertainties and clear guidance for practical lattice analyses.

Keywords

Cite

@article{arxiv.2510.14325,
  title  = {Hybrid Renormalization with Gradient Flow for Baryon Quasi-Distribution Amplitudes},
  author = {Jia-lu Zhang and Mu-Hua Zhang},
  journal= {arXiv preprint arXiv:2510.14325},
  year   = {2025}
}

Comments

13 pages, 3 figures