@article{7ee0775919ef4bdb9fc0c0c09c8a4bd6,
title = "Poincar{\'e} invariance constraints on NRQCD and potential NRQCD",
abstract = "We discuss the constraints induced by the algebra of the Poincar{\'e} generators on non-relativistic effective field theories. In the first part we derive some relations among the matching coefficients of the HQET (and NRQCD), which have been formerly obtained by use of reparametrization invariance. In the second part we obtain new constraints on the matching coefficients of pNRQCD.",
author = "Nora Brambilla and Dieter Gromes and Antonio Vairo",
note = "Funding Information: The authors thank Heinz Rothe and Klaus Rothe for valuable discussions on the quantization procedure and Joan Soto for reading the manuscript and for useful comments and suggestions. A.V. was supported during this work by the European Community through the Marie-Curie fellowship HPMF-CT-2000-00733. N.B. gratefully acknowledge the support of the Alexander von Humboldt Foundation.",
year = "2003",
month = dec,
day = "11",
doi = "10.1016/j.physletb.2003.09.100",
language = "English",
volume = "576",
pages = "314--327",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier B.V.",
number = "3-4",
}