The microscopic Twisted Mass Dirac spectrum and the spectral determination of the LECs of Wilson χ-PT

2015/10/30 by Krzysztof Cichy, Cichy, Krzysztof, Elena García-Ramos +6
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.48550/arxiv.1510.09169

7 pages, 3 figures. Talk presented at the 33rd International Symposium on Lattice Field Theory (Lattice 2015), 14-18 July 2015, Kobe International Conference Center, Kobe, Japan

arxiv created 2015/10/30 · openalex publication_date 2015/10/30 · arxiv updated 2015/11/02 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28

Abstract

We present the comparison of the analytical microscopic spectral density for lattice QCD with N_{\rm f}=2 twisted mass fermions with the one obtained on the lattice utilizing configurations produced by the ETM collaboration. We extract estimates for the chiral condensate as well as the low-energy constant W₈ of Wilson χ-PT by employing spectral information of the Wilson Dirac operator with fixed index at finite volume.

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