Observation of psi(3770) -> eta J/psi
| dc.WoS.categories | Astronomy & AstrophysicsPhysics, Particles & Fields | en_US |
| dc.authorid | 0000-0001-5050-8441 | en_US |
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2023-09-27T06:50:34Z | |
| dc.date.available | 2023-09-27T06:50:34Z | |
| dc.date.issued | 2023-05-15 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| 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.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1103/PhysRevD.107.L091101 | en_US |
| dc.identifier.issn | 2470-0029 | |
| dc.identifier.issn | 2470-0010 | |
| dc.identifier.uri | https://hdl.handle.net/11411/5214 | |
| dc.identifier.uri | https://doi.org/10.1103/PhysRevD.107.L091101 | |
| dc.identifier.wos | WOS:001021525600002 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.issue | 9 | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 50+ | en_US |
| dc.publisher | AMER PHYSICAL SOC. | en_US |
| dc.relation.ispartof | PHYSICAL REVIEW D | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | 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 psi(3770) -> eta J/psi | en_US |
| dc.type | Article | en_US |
| dc.volume | 107 | en_US |
