Isospin breaking effects in the X(3872) resonance
arXiv:0905.0402 · doi:10.1103/PhysRevD.80.014003
Abstract
In this paper we study the effects of isospin breaking in the dynamical generation of the X(3872) state. We also calculate the ratio of the branching fractions of the decaying into with two and three pions, which has been measured experimentally to be close to unity. Together with the X(3872), of positive C-parity, we predict the existence of a negative C-parity state and we comment on which decay channel is more promising to observe this state.
10 pages, 6 figures, study on the line shape of the X(3872) added
References in corpus (14)
- Charmonium
- Vector meson-vector meson interaction in a hidden gauge unitary approach
- Is X(3872) {\sl Really} a Molecular State?
- Origin of resonances in the chiral unitary approach
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- Photon induced Lambda(1520) production and the role of the K^* exchange
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