Ablikim, M.Achasov, M.N.Adlarson ,P.Çetin, Serkant AliKolcu, Onur Buğra2025-05-092025-05-092024Kalantar-Nayestanaki, N., Kappert, R., Kavatsyuk, M., Messchendorp, J., Rodin, V., & BESIII Collaboration. (2024). Coupled-Channel Analysis of the χc1 (3872) Line Shape with BESIII Data. Physical Review Letters, 132(15), 151903.00319007http://dx.doi.org/10.1103/PhysRevLett.132.151903https://hdl.handle.net/20.500.12713/7244We perform a study of the χc1(3872) line shape using the data samples of e+e-→γχc1(3872), χc1(3872)→D0D¯0π0, and π+π-J/ψ collected with the BESIII detector. The effects of the coupled channels and the off-shell D∗0 are included in the parametrization of the line shape. The line shape mass parameter is obtained to be MX=(3871.63±0.13-0.05+0.06) MeV. Two poles are found on the first and second Riemann sheets corresponding to the D∗0D¯0 branch cut. The pole location on the first sheet is much closer to the D∗0D¯0 threshold than the other, and is determined to be 7.04±0.15-0.08+0.07 MeV above the D0D¯0π0 threshold with an imaginary part -0.19±0.08-0.19+0.14 MeV. © 2024 authors. Published by the American Physical Society.eninfo:eu-repo/semantics/openAccessArticle1321538682963WOS:001270010900001Q110.1103/PhysRevLett.132.151903Q1