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29 March 2024
 
  » arxiv » hep-ph/0302273

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J/psi couplings to charmed resonances and to pi
A. Deandrea ; G. Nardulli ; A.D. Polosa ;
Date 28 Feb 2003
Journal Phys.Rev. D68 (2003) 034002
Subject hep-ph nucl-th
AbstractWe present an evaluation of the strong couplings JD^(*)D^(*) and JD^(*)D^(*)pi by an effective field theory of quarks and mesons. These couplings are necessary to calculate pi+J/psi --> D^(*)+barD^(*) cross sections, an important background to the J/psi suppression signal in the quark-gluon plasma. We write down the general effective lagrangian and compute the relevant couplings in the soft pion limit and beyond.
Source arXiv, hep-ph/0302273
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