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A dynamical study of the chirally rotated Schrödinger functional in QCD

2014/12/27 by Mattia Dalla Brida, Brida, Mattia Dalla, Stefan Sint +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.48550/arxiv.1412.8022

Talk given at the 32nd International Symposium on Lattice Field Theory, 23-28 June, 2014, New York, US; LaTeX source, 7 pages, 6 figures

arxiv created 2014/12/27 · openalex publication_date 2014/12/27 · arxiv updated 2014/12/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The chirally rotated Schrödinger functional for Wilson-fermions allows for finite-volume, mass-independent renormalization schemes compatible with automatic O(a) improvement. So far, in QCD, the set-up has only been studied in the quenched approximation. Here we present first results for N\rm f = 2 dynamical quark-flavours for several renormalization factors of quark-bilinears. We discuss how these renormalization factors can be easily obtained from simple ratios of two-point functions, and show how automatic O(a) improvement is at work. As a by-product of this investigation the renormalization of the non-singlet axial current, ZA, is determined very precisely.

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