$Z_S/Z_P$ from three-flavour lattice QCD

Jochen Heitger; Fabian Joswig; Anastassios Vladikas

$Z_S/Z_P$ from three-flavour lattice QCD

High Energy Physics - Lattice 2018-10-09 v1

Authors: Jochen Heitger , Fabian Joswig , Anastassios Vladikas

Abstract

We report on advances in the non-perturbative determination of the ratio $Z_S/Z_P$ of the pseudoscalar to the scalar renormalization constants in three-flavour lattice QCD with Wilson-clover quarks and tree-level Symanzik improved gluons. The computations are based on the Ward identity approach, using Schr\"odinger functional boundary conditions. Our results for $Z_S/Z_P$ cover a range of couplings along a line of constant physics with lattice spacings of about 0.09 fm and below, relevant for phenomenological applications such as the calculation of renormalized quark masses.

Keywords

lattice qcd renormalization constants ward identity schrödinger functional wilson-clover quarks quark masses

Cite

@article{arxiv.1810.03509,
  title  = {$Z_S/Z_P$ from three-flavour lattice QCD},
  author = {Jochen Heitger and Fabian Joswig and Anastassios Vladikas},
  journal= {arXiv preprint arXiv:1810.03509},
  year   = {2018}
}

Comments

7 pages including figures and tables, latex2e; Proceedings of the 36th International Symposium on Lattice Field Theory (Lattice 2018), 22-28 July 2018, Michigan State University, East Lansing, Michigan, USA

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