dc.contributor.author | Kolcu, O. B. | |
dc.contributor.author | BESIII Collaboration | |
dc.date.accessioned | 2023-11-09T11:37:40Z | |
dc.date.available | 2023-11-09T11:37:40Z | |
dc.date.issued | 2023 | en_US |
dc.identifier.citation | Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., ... & Kalantar-Nayestanaki, N. (2023). Observation of ψ (3770)→ η J/ψ. Physical Review D, 107(9), L091101. | en_US |
dc.identifier.issn | 24700010 | |
dc.identifier.uri | https://doi.org/10.1103/PhysRevD.107.L091101 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12294/3973 | |
dc.description.abstract | Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, the Born cross section of the process e+e- -> eta J=psi at a center-of-mass energy pffisffi = 3.773 GeV is measured to be (8.88 +/- 0.87 +/- 0.42) pb. We fit the cross section line shape before correcting for the initial state radiation ffiffifromps = 3.773 to 4.600 GeV to obtain the branching fraction B(psi(3770) -> eta J=psi). We obtain B(psi(3770) -> eta J=psi) = (11.3 +/- 5.9 +/- 1.1) x 10-4 when the psi(3770) decay amplitude is added coher-ently to the other contributions, and (8.7 +/- 1.0 +/- 0.8) x 10-4 when it is added incoherently. Here the quoted uncertainties are statistical and systematic, respectively. In both cases, the statistical significance of psi(3770) resonance is above 7 sigma. This is the first time the decay psi(3770) -> eta J=psi is observed with a statistical significance greater than 5 sigma. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.ispartof | Physical Review D | en_US |
dc.identifier.doi | 10.1103/PhysRevD.107.L091101 | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | RADIATIVE-CORRECTIONS | en_US |
dc.subject | MONTE-CARLO | en_US |
dc.subject | DECAY | en_US |
dc.subject | CHARMONIUM | en_US |
dc.title | Observation of ψ(3770) → ηJ/ψ | en_US |
dc.type | article | en_US |
dc.department | Mühendislik ve Mimarlık Fakültesi, Bilgisayar Mühendisliği Bölümü | en_US |
dc.authorid | 0000-0002-9177-1286 | en_US |
dc.identifier.volume | 107 | en_US |
dc.identifier.issue | 9 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.institutionauthor | Kolcu, O. B. | |
dc.authorwosid | DWD-3692-2022 | en_US |
dc.authorscopusid | 57936993500 | en_US |
dc.identifier.wosquality | Q1 | en_US |
dc.identifier.wos | WOS:001021525600002 | en_US |
dc.identifier.scopus | 2-s2.0-85160780435 | en_US |