出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We start from a picture of the X(3872) which appears as a bound state of D¯D c:c: and we evaluate the decay width into the J=yg, J=ypp and J=yppp channels. For this purpose we evaluate the loops through which the X(3872) decays into its components. The J=y and the photon, as well as a r or a w meson, are radiated from these components. We use the local hidden gauge approach extrapolated to SU(4) with a particular SU(4) breaking. The decays involve anomalous couplings and we obtain acceptable values for the total rates and their ratios which compare favorably with experiment.
