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Reparametrization invariance reexamined

Markus Finkemeier, Howard Georgi, and Matt McIrvin

  • Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138

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Phys. Rev. D 55, 6933 – Published 1 June, 1997

DOI: https://doi.org/10.1103/PhysRevD.55.6933

Abstract

Reparametrization invariance, a symmetry of heavy quark effective theory, appears in different forms in the literature. The most commonly cited forms of the reparametrization transformation are shown to induce the same constraints on operators that do not vanish under the equation of motion to order 1/m2, and to be related by a redefinition of the heavy quark field. We give a new, very straightforward proof that the reparametrization invariance constraints apply to all orders in αs under matching to full QCD and renormalization-group running, at least up to and including O(1/m2).

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Outline

Information

Phys. Rev. D 55, 6933– Published 1 June, 1997
  • Received 24 February 1997

© 1997 American Physical Society

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