Observation of e + e ? ? ? 0 ? 0 ? 2(3823)
| dc.contributor.author | Ablikim, M. | |
| dc.contributor.author | Achasov, M.N. | |
| dc.contributor.author | Adlarson, P. | |
| dc.contributor.author | Albrecht, M. | |
| dc.contributor.author | Aliberti, R. | |
| dc.contributor.author | Amoroso, A. | |
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2024-05-19T14:33:54Z | |
| dc.date.available | 2024-05-19T14:33:54Z | |
| dc.date.issued | 2023 | |
| dc.department | İstinye Üniversitesi | en_US |
| dc.description.abstract | Using a data sample corresponding to an integrated luminosity of 11.3 fb?1 collected at center-of-mass energies from 4.23 to 4.70 GeV with the BESIII detector, we observe the process e+e?? ?0?0?2(3823) for the first time with a statistical significance of 6.0 standard deviations. The ratio of average cross sections for e+e?? ?0?0?2(3823) and ?+???2(3823) is determined to be R=?[e+e???0?0?2(3823)]?[e+e???+???2(3823)]=0.57±0.14±0.05, which is consistent with expectations from isospin symmetry. Here and below, the first uncertainties are statistical and the second are systematic. The mass of the ?2(3823) is measured to be M[?2(3823)] = 3824.5 ± 2.4 ± 1.0 MeV/c2. Due to the limited data sample, an upper limit of 18.8 MeV at 90% confidence level is set on the intrinsic width of ?2(3823). [Figure not available: see fulltext.]. © 2023, The Author(s). | en_US |
| dc.identifier.doi | 10.1007/JHEP02(2023)171 | |
| dc.identifier.issn | 1029-8479 | |
| dc.identifier.issue | 2 | en_US |
| dc.identifier.scopus | 2-s2.0-85148519092 | en_US |
| dc.identifier.scopusquality | Q2 | en_US |
| dc.identifier.uri | https://doi.org/10.1007/JHEP02(2023)171 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12713/4365 | |
| dc.identifier.volume | 2023 | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Springer Science and Business Media Deutschland GmbH | en_US |
| dc.relation.ispartof | Journal of High Energy Physics | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.snmz | 20240519_ka | en_US |
| dc.subject | E+-E? Experiments | en_US |
| dc.subject | Exotics | en_US |
| dc.subject | Particle And Resonance Production | en_US |
| dc.subject | Spectroscopy | en_US |
| dc.title | Observation of e + e ? ? ? 0 ? 0 ? 2(3823) | en_US |
| dc.type | Article | en_US |
