An improved limit for eeof X(3872)and eemeasurement ofψ(3686)
| dc.contributor.author | Çakır, Orhan | |
| dc.contributor.department | Fen Fakültesi | tr_TR |
| dc.date.accessioned | 2020-02-20T21:14:25Z | |
| dc.date.available | 2020-02-20T21:14:25Z | |
| dc.date.issued | 2015 | |
| dc.description.abstract | Using the data sets taken at center-of-mass energies above 4 GeV by the BESIII detector at the BEPCII storage ring, we search for the reaction e+e-→γISRX(3872)→γISRπ+π-J/ψ via the Initial State Radiation technique. The production of a resonance with quantum numbers JPC=1++ such as the X(3872) via single photon e+e- annihilation is forbidden, but is allowed by a next-to-leading order box diagram. We do not observe a significant signal of X(3872), and therefore give an upper limit for the electronic width times the branching fraction Γee X(3872)B(X(3872)→π+π-J/ψ)<0.13 eV at the 90% confidence level. This measurement improves upon existing limits by a factor of 46. Using the same final state, we also measure the electronic width of the ψ(3686) to be Γee ψ(3686)=2213±18stat±99sys eV. | tr_TR |
| dc.description.index | Wos | |
| dc.description.index | Scopus | |
| dc.identifier.endpage | 07 | tr_TR |
| dc.identifier.issn/e-issn | 0370-2693 | |
| dc.identifier.startpage | 01 | tr_TR |
| dc.identifier.uri | https://doi.org/10.1016/j.physletb.2015.08.013 | tr_TR |
| dc.identifier.uri | http://hdl.handle.net/20.500.12575/69915 | |
| dc.identifier.volume | 749 | tr_TR |
| dc.language.iso | en | tr_TR |
| dc.relation.isversionof | 10.1016/j.physletb.2015.08.013 | tr_TR |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | tr_TR |
| dc.rights | CC0 1.0 Universal | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | * |
| dc.subject | BESIIICharmonium spectroscopyX(3872)Γeeψ(3686) | tr_TR |
| dc.title | An improved limit for eeof X(3872)and eemeasurement ofψ(3686) | tr_TR |
| dc.type | Article | tr_TR |