Observation of an Excess of Dicharmonium Events in the Four-Muon Final State with the ATLAS Detector
| dc.authorid | 0000-0001-5050-8441 | en_US |
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2024-05-10T07:31:33Z | |
| dc.date.available | 2024-05-10T07:31:33Z | |
| dc.date.issued | 2023-10-11 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | A search is made for potential ccc? c? tetraquarks decaying into a pair of charmonium states in the four ffiffi muon final state using proton-proton collision data at ps ¼ 13 TeV, corresponding to an integrated luminosity of 140 fb?1 recorded by the ATLAS experiment at LHC. Two decay channels, J=? ? J=? ? 4? and J=? ? ? ?2S? ? 4?, are studied. Backgrounds are estimated based on a hybrid approach involving Monte Carlo simulations and data-driven methods. Statistically significant excesses with respect to backgrounds dominated by the single parton scattering are seen in the di-J=? channel consistent with a narrow resonance at 6.9 GeV and a broader structure at lower mass. A statistically significant excess is also seen in the J=? ? ? ?2S? channel. The fitted masses and decay widths of the structures are reported. © 2023 CERN, for the ATLAS Collaboration. | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1103/PhysRevLett.131.151902 | en_US |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.pmid | 37897770 | en_US |
| dc.identifier.scopus | 2-s2.0-85175279527 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/5340 | |
| dc.identifier.uri | https://doi.org/10.1103/PhysRevLett.131.151902 | |
| dc.identifier.wos | WOS:001102901700001 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.indekslendigikaynak | PubMed | en_US |
| dc.issue | 15 | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 500+ | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.ispartof | Physical Review Letters | 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 | Charged particles | en_US |
| dc.subject | Germanium alloys | en_US |
| dc.subject | Germanium compounds | en_US |
| dc.subject | Intelligent systems | en_US |
| dc.title | Observation of an Excess of Dicharmonium Events in the Four-Muon Final State with the ATLAS Detector | en_US |
| dc.type | Article | en_US |
| dc.volume | 131 | en_US |
