Z_S/Z_P from three-flavour lattice QCD

2018/10/08 by Jochen Heitger, Heitger, Jochen, Fabian Joswig +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1810.03509

openalex publication_date 2018/10/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 Schrödinger 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.

Citations

• Orderaimproved renormalization constants
• Alleviating the window problem in large volume renormalization schemes

Related

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• Nonperturbative running of the quark mass for N_f=3 QCD from the chirally rotated Schrödinger Functional
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