| dc.contributor.author | The BESIII collaboration | en_US |
| dc.contributor.author | Kolcu, Onur Buğra | en_US |
| dc.date.accessioned | 2019-10-29T17:49:36Z | |
| dc.date.available | 2019-10-29T17:49:36Z | |
| dc.date.issued | 2015 | |
| dc.identifier.issn | 1550-7998 | |
| dc.identifier.uri | https://dx.doi.org/10.1103/PhysRevD.92.051101 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12294/2226 | |
| dc.description.abstract | Based on a sample of ?? mesons produced in the radiative decay J/????? in 1.31×109 J/? events collected with the BESIII detector, the decay ????e+e- is observed for the first time, with a statistical significance of 8?. The branching fraction is measured to be B(????e+e-)=(1.97±0.34(stat)±0.17(syst))×10-4, which is in agreement with theoretical predictions. The branching fraction of ????? is also measured to be (2.55±0.03(stat)±0.16(syst))×10-2, which is the most precise measurement to date, and the relative branching fraction B(????e+e-)B(?????) is determined to be (7.71±1.34(stat)±0.54(syst))×10-3. © 2015 American Physical Society. | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.ispartof | Physical Review D - Particles, Fields, Gravitation and Cosmology | en_US |
| dc.identifier.doi | 10.1103/PhysRevD.92.051101 | en_US |
| dc.identifier.doi | 10.1103/PhysRevD.92.051101 | |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.title | Observation of eta ' -> omega e(+)e(-) | en_US |
| dc.type | article | en_US |
| dc.department | İstanbul Arel Üniversitesi, Meslek Yüksekokulu, Optisyenlik Programı | en_US |
| dc.identifier.volume | 92 | en_US |
| dc.identifier.issue | 5 | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
