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arXiv · hep-ph/0302273

J/psi couplings to charmed resonances and to pi

A. Deandrea·G. Nardulli·A. D. Polosa
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Abstract

We 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.

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A. Deandrea, G. Nardulli, A. D. Polosa. 2003-06-04. J/psi couplings to charmed resonances and to pi. https://doi.org/10.1103/physrevd.68.034002

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