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Effective Field Theory for Ultrasoft Momenta in NRQCD and NRQED
Published: July 26, 1997
arXiv: hep-ph/9707481v2
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Authors
A. Pineda
,
J. Soto
Abstract
We propose an effective field theory for heavy quark-antiquark bound states once the soft gluons have been integrated out. We also give new results for the matching between QCD (QED) and NRQCD (NRQED).
