PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - Hadron Spectroscopy and Interactions
Hadronic Parity Violation from Twisted Mass Lattice QCD
N. Schlage*, M. Petschlies, A. Sen and C. Urbach
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Pre-published on: February 14, 2023
Published on: April 06, 2023
Abstract
We present results for an exploratory lattice calculation of the leading parity-violating pion-nucleon coupling $h_\pi^1$. Based on the PCAC relation we use a parity-conserving Lagrangian and focus on the techniques to determine the nucleon matrix elements of the effective 4-quark operators. For our study we employ an ensemble of twisted mass fermions with $260$ MeV pion mass. Barring mixing with lower-dimensional operators and renormalization at this stage, we discuss our estimate for $h_\pi^1$.
DOI: https://doi.org/10.22323/1.430.0082
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