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On-shell improved lattice gauge theories

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Abstract

By means of a spectrum conserving transformation, we show that one of the 3 coefficients in Symanzik's improved action can be chosen freely, if only spectral quantities (masses of stable particles, heavy quark potential etc.) are to be improved. In perturbation theory, the other 2 coefficients are however completely determined and their values are obtained to lowest order.

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Authors and Affiliations

  1. Deutsches Elektronen-Synchrotron DESY, D-2000, Hamburg, Federal Republic of Germany

    M. Lüscher

  2. II. Institut für Theoretische Physik der Universität Hamburg, D-2000, Hamburg 50, Federal Republic of Germany

    P. Weisz

Authors
  1. M. Lüscher
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  2. P. Weisz
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Additional information

Communicated by G. Mack

Heisenberg foundation fellow

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Lüscher, M., Weisz, P. On-shell improved lattice gauge theories. Commun.Math. Phys. 97, 59–77 (1985). https://doi.org/10.1007/BF01206178

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  • DOI: https://doi.org/10.1007/BF01206178

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