First observation of the direct production of the ?c1 in e+e- annihilation

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dc.authoridSerkant Ali Çetin / 0000-0001-5050-8441
dc.authorscopusidSerkant Ali Çetin / 34567544400en_US
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022
dc.contributor.authorAblikim, Medina N.
dc.contributor.authorAchasov, M. N.
dc.contributor.authorAdlarson, Patrik
dc.contributor.authorAhmed, Shakeel
dc.contributor.authorAlbrecht, Malte
dc.date.accessioned2022-11-08T13:45:40Z
dc.date.available2022-11-08T13:45:40Z
dc.date.issued2022en_US
dc.departmentİstinye Üniversitesi, Rektörlük, AR-GEen_US
dc.description.abstractWe study the direct production of the JPC=1++ charmonium state ?c1(1P) in electron-positron annihilation by carrying out an energy scan around the mass of the ?c1(1P). The data were collected with the BESIII detector at the BEPCII collider. An interference pattern between the signal process e+e-??c1(1P)??J/????+?- and the background processes e+e-??ISRJ/???ISR?+?- and e+e-??ISR?+?- is observed by combining all the data samples. The ?c1(1P) signal is observed with a significance of 5.1?. This is the first observation of a C-even state directly produced in e+e- annihilation. The electronic width of the ?c1(1P) resonance is determined to be ?ee=(0.12-0.08+0.13) eV, which is of the same order of magnitude as theoretical calculations. © 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.en_US
dc.identifier.citationAblikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., . . . (BESIII Collaboration). (2022). First observation of the direct production of the χc1 in e+e- annihilation. Physical Review Letters, 129(12) doi:10.1103/PhysRevLett.129.122001en_US
dc.identifier.doi10.1103/PhysRevLett.129.122001en_US
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-85138917856en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.129.122001
dc.identifier.urihttps://hdl.handle.net/20.500.12713/3281
dc.identifier.volume129en_US
dc.identifier.wosWOS:000888759800005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorÇetin, Serkant Ali
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleFirst observation of the direct production of the ?c1 in e+e- annihilationen_US
dc.typeArticleen_US

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