Isospin breaking effects in the dynamical generation of the X(3872)

Details Isospin breaking effects in the dynamical generation of the X(3872) Isospin breaking effects in the dynamical generation of the X(3872)

2010-01-19

arxiv.org/abs/1001.3254v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 1 figure. To appear in the Proceedings of XIII International Conference on Hadron Spectroscopy, November 29 - Decembe

Scientific paper

We have studied isospin breaking effects in the X(3872) resonance and found a natural explanation for the branching fraction of the X decaying to $J/\psi$ with two and three pions being close to unit. Within our framework the X(3872) is a dynamically generated resonance in coupled channels. We also study the relationship between the couplings of the resonance to the coupled channels with its wave function, which further helps us to understand the isospin structure of the resonance.

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