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Open Access item Isospin breaking effects in the X(3872) resonance

Authors:Oset, Eulogi
Gamermann, Daniel
Issue Date:7-Jul-2009
Publisher:American Physical Society
Citation:Physical Review - Section D - Particles and Fields 80 (1): 014003 (2009)
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 $X$ decaying into $J/\psi$ 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.
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevD.80.014003
URI:http://hdl.handle.net/10261/20747
ISSN:1550-7998
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Appears in Collections:(IFIC) Artículos

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