J / ψ couplings to charmed resonances and to π
نویسنده
چکیده
We present an evaluation of the strong couplings JD(∗)D(∗) and JD(∗)D(∗)π by an effective field theory of quarks and mesons. These couplings are necessary to calculate π+J/ψ → D(∗)+D̄(∗) cross sections, an important background to the J/ψ 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.
منابع مشابه
A Note on the J/ψ Strong Couplings
In this note we present an evaluation of the couplings JD(∗)D(∗) and JD(∗)D(∗)π in the Constituent Quark Model. These couplings are a crucial ingredient in the calculation of cross sections for the processes πJ/ψ → D(∗)D̄(∗), an important background for the J/ψ suppression signal in quark-gluon plasma. BARI-TH/02-450 CERN-TH/2002-343 LYCEN-2002-68 November 2002 in Workshop on Hard Probes in Heav...
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