English

Status of next-generation $\Lambda_b \to p, \Lambda, \Lambda_c$ form-factor calculations

High Energy Physics - Lattice 2023-10-03 v2 High Energy Physics - Phenomenology

Abstract

I present preliminary results of next-generation lattice-QCD calculations of the Λbp\Lambda_b \to p, ΛbΛ\Lambda_b \to \Lambda, and ΛbΛc\Lambda_b \to \Lambda_c form factors based on RBC/UKQCD gauge-field ensembles with 2+1 flavors of domain-wall fermions. Compared to the work published in 2015 and 2016, the new calculations include three additional ensembles (one with 139 MeV pion mass, one with 0.073 fm lattice spacing, and one with another volume) and were performed with a more accurate tuning of the charm and bottom anisotropic clover action parameters.

Keywords

Cite

@article{arxiv.2309.01821,
  title  = {Status of next-generation $\Lambda_b \to p, \Lambda, \Lambda_c$ form-factor calculations},
  author = {Stefan Meinel},
  journal= {arXiv preprint arXiv:2309.01821},
  year   = {2023}
}

Comments

12 pages, 5 figures. Proceedings of the 40th International Symposium on Lattice Field Theory (Lattice 2023), Fermilab

R2 v1 2026-06-28T12:12:33.991Z