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New results on heavy quarks near threshold
We review in brief the threshold expansion, a method to perform the expansion of Feynman integrals near the heavy quark-antiquark threshold, and its relation to the construction of two effective theories, non-relativistic QCD (NRQCD) and potential-NRQCD. We then summarize recent next-to-next-to-lead...
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| Lenguaje: | eng |
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1998
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| Acceso en línea: | http://cds.cern.ch/record/357901 |