The upper limit of the e+e- partial width of X(3872)
| dc.creator | Yuan, C. Z. | |
| dc.creator | Mo, X. H. | |
| dc.creator | Wang, P. | |
| dc.date | 2003-10-22 | |
| dc.date | 2003-12-18 | |
| dc.date.accessioned | 2026-07-07T10:28:59Z | |
| dc.date.available | 2026-07-07T10:28:59Z | |
| dc.description | The e+e- decay partial width of the recently observed state, X(3872), is estimated using the ISR data collected at the center of mass energy 4.03 GeV in e+e- annihilation experiment by BES at BEPC. It is found that the product of the e+e- partial width and X(3872) --> pi+ pi- J/psi decay branching fraction is less than 10 eV at 90 % confidence level if the J(PC) of X(3872) is 1(--). Together with the potential models and other information, we conclude that X(3872) is very unlikely to be a vector state. | |
| dc.description | 5 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0310261 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0310261 | |
| dc.identifier | Phys.Lett.B579:74-78,2004 | |
| dc.identifier | doi:10.1016/j.physletb.2003.10.080 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177641 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The upper limit of the e+e- partial width of X(3872) | |
| dc.type | text |