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Effective lagrangian for quarkonia and light mesons in a soft-exchange-approximation

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Nardulli, G.
Published in Physics Letters. B. 1993, vol. 302, no. 1, p. 95-102
Abstract We present a heavy quark description of quarkonium states and an effective lagrangian describing those interactions with chiral bosons and photons which occur in a soft-exchange-approximation regime. The formalism is expected to be valid for an intermediate heavy quark mass (up to ≈ 80 GeV) and is based on the approximate validity of the heavy quark spin symmetry and velocity superselection rule. Some applications to radiative and hadronic transitions are discussed.
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CASALBUONI, Roberto et al. Effective lagrangian for quarkonia and light mesons in a soft-exchange-approximation. In: Physics Letters. B, 1993, vol. 302, n° 1, p. 95-102. https://archive-ouverte.unige.ch/unige:91482

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Deposited on : 2017-01-30

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