Renormalization constants for $N_{\rm f}=2+1+1$ twisted mass QCD

Abstract : We summarize recent non-perturbative results obtained for the renormalization constants computed in the RI'-MOM scheme for $N_{\rm f}=2+1+1$ twisted mass QCD. Our implementation employs the Iwasaki gauge action and four dynamical degenerate twisted mass fermions. Renormalization constants for scalar, pseudo-scalar, vector and axial operators, as well as the quark propagator renormalization, are computed at three different values of the lattice spacing, two different volumes and several values of the twisted mass. Our method allows for a precise cross-check of the running, because of the particular proper treatment of the hypercubic artifacts. Preliminary results for twist-2 operators are also presented.
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Communication dans un congrès
32nd International Symposium on Lattice Field Theory (LATTICE 2014), Jun 2014, New York, United States. Proceedings of Science, A paraitre, 2014
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http://hal.in2p3.fr/in2p3-01080323
Contributeur : Emmanuelle Vernay <>
Soumis le : mercredi 5 novembre 2014 - 08:41:49
Dernière modification le : jeudi 1 février 2018 - 01:27:13

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  • HAL Id : in2p3-01080323, version 1
  • ARXIV : 1411.0053

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S. Zafeiropoulos, P. Guichon. Renormalization constants for $N_{\rm f}=2+1+1$ twisted mass QCD. 32nd International Symposium on Lattice Field Theory (LATTICE 2014), Jun 2014, New York, United States. Proceedings of Science, A paraitre, 2014. 〈in2p3-01080323〉

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