Isospin breaking of the narrow charmonium state of Belle at 3872 MeV as a deuson
| dc.creator | Tornqvist, Nils A. | |
| dc.date | 2004-02-23 | |
| dc.date | 2004-03-29 | |
| dc.date.accessioned | 2026-07-07T10:49:01Z | |
| dc.date.available | 2026-07-07T10:49:01Z | |
| dc.description | The narrow charmonium state near 3872 MeV reported by the Belle collaboration and confirmedby CDF lies almost exactly at the neutral D anti-D* threshold. As was predicted many years ago it can be a deuteronlike meson-meson state called a deuson. If so, it should be an axial, or possibily a pseudoscalar state with C=0, and isospin predominantly 0. Large isospin breaking is expected because of the isospin mass splitting between the neutral and charged D (D*) mesons. Because of this large isospin breaking the decay X(3872) to J/psi rho would be allowed, while J/psi sigma would be forbidden by C-parity, as indicated by the present data. | |
| dc.description | 7 latex pages 5 figures. This report supercedes the unpublished reminder hep-ph/0308277. Version 2 to appear in Physics Letters B, one reference added and minor improvements | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0402237 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0402237 | |
| dc.identifier | Phys.Lett.B590:209-215,2004 | |
| dc.identifier | doi:10.1016/j.physletb.2004.03.077 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184079 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | Isospin breaking of the narrow charmonium state of Belle at 3872 MeV as a deuson | |
| dc.type | text |