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Title: The QCD Potential at O(1/m2): Complete spin-dependent and spin-independent result
Author: Pineda, Antonio (Pineda Ruiz)
Vairo, Antonio
Keywords: Pertorbació (Dinàmica quàntica)
Partícules (Física nuclear)
Teoria de camps (Física)
Perturbation (Quantum dynamics)
Particles (Nuclear physics)
Field theory (Physics)
Issue Date: 2001
Publisher: The American Physical Society
Abstract: Within an effective field theory framework, we obtain an expression, with O(1/m2) accuracy, for the energies of the gluonic excitations between heavy quarks, which holds beyond perturbation theory. For the singlet heavy-quarkantiquark energy, in particular, we also obtain an expression in terms of Wilson loops. This provides, twenty years after the seminal work of Eichten and Feinberg, the first complete expression for the heavy quarkonium potential up to O(1/m2) for pure gluodynamics. Several errors present in the previous literature (also in the work of Eichten and Feinberg) have been corrected. We also briefly discuss the power counting of NRQCD in the nonperturbative regime.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 2001, vol. 63, núm. 5, p. 054007-1-054007-16
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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