J-psi gamma and psi2S gamma decay modes of the X3872Reportar como inadecuado



 J-psi gamma and psi2S gamma decay modes of the X3872


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The X3872 with quantum numbers JPC = 1++ is considered as a composite state containing both molecular hadronic and a c barc component. Based on this structure assumption we first constrain model parameters in order to reproduce the predictions for the radiative decay widths of X3872 to J-psi gamma and X3872 to psi2S gamma as obtained in c barc potential models. Depending on these predictions we find that further inclusion of the molecular component can in principle lead to an improved description of the radiative X3872 decays. We also show that strong decay modes of the X3872 and in particular the ratio of radiative J-psi gamma to strong J-psi pi+ pi- decays hint towards a subleading role of the c barc component in the X3872.



Autor: Yubing Dong; Amand Faessler; Thomas Gutsche; Valery E. Lyubovitskij

Fuente: https://archive.org/



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