@article{53e717650ffa4d5f91d6055b7fba934c,
title = "Potential NRQCD: An effective theory for heavy quarkonium",
abstract = "Within an effective field theory framework we study heavy-quark-antiquark systems with a typical distance between the heavy quark and the antiquark smaller than 1/ΛQCD. A suitable definition of the potential is given within this framework, while non-potential (retardation) effects are taken into account in a systematic way. We explore different physical systems. Model-independent results on the short distance behaviour of the energies of the gluonic excitations between static quarks are obtained. Finally, we show how infrared renormalons affecting the static potential get cancelled in the effective theory.",
author = "Nora Brambilla and Antonio Pineda and Joan Soto and Antonio Vairo",
note = "Funding Information: N.B. acknowledges the TMR contract No. ERBFMBICT961714, A.P. the TMR contract No. ERBFMBICT983405, J.S. the AEN98-031 (Spain) and 1998SGR 00026 (Catalonia) and A.V. the FWF contract No. P12254. N.B., J.S. and A.V. acknowledge the program 'Acciones Integradas 1999-2000', project No. 13/99; thank Gunnar Bali for many interesting and enlightening discussions on the hybrid issue and Emilio Ribeiro of the Technical University of Lisbon for hospitality during an earlier stage of this work. N.B. and A.V. thank the University of Barcelona for hospitality. J.S. thanks the CERN Theory Group, and the Theory Group of the University of Vienna for hospitality while part of this work was carried out. ",
year = "2000",
month = jan,
day = "31",
doi = "10.1016/S0550-3213(99)00693-8",
language = "English",
volume = "566",
pages = "275--310",
journal = "Nuclear Physics, Section B",
issn = "0550-3213",
publisher = "Elsevier B.V.",
number = "1-2",
}