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A J^PG=1++ Charged Resonance in the Y(4260) to pi+pi- J/psi Decay?
New BES data show a peak in the Y(4260) decay into J/psi plus one charged pion. We point out that the peak might correspond to a charged resonance at about 3880 MeV predicted time ago within a tetraquark model. The same tetraquark model predicts another peak at about 100 MeV below the observed one....
| Autores principales: | , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2013
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.87.111102 http://cds.cern.ch/record/1536670 |