Ablikim, Medina N.Achasov, M. N.Adlarson, PatrikAlbrecht, MalteAliberti, Riccardo2022-11-072022-11-072022Ablikim, M., Achasov, M. N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., . . . (BESIII Collaboration). (2022). Measurement of e+e- →π+π-D+D- cross sections at center-of-mass energies from 4.190 to 4.946 GeV. Physical Review D, 106(5) doi:10.1103/PhysRevD.106.052012https://doi.org/10.1103/PhysRevD.106.052012https://hdl.handle.net/20.500.12713/3238Using data samples collected with the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the e+e-??+?-D+D- process at center-of-mass energies from 4.190 to 4.946 GeV with a partial reconstruction method. Resonance structures are seen and the cross section line shape can be described by the coherent sum of either two Breit-Wigner functions or a Breit-Wigner function and a phase space term. The mass and width of the resonance at about 4.4 GeV are determined to be (4371.6±2.5±9.2) MeV/c2 and (167±4±29) MeV, respectively, which are in agreement with those of the ?(4360) or Y(4390) state. The spin-3D-wave charmonium state X(3842) is searched for through the e+e-??+?-X(3842)??+?-D+D- process, and evidence with a significance of 4.2? is found in the data samples with center-of-mass energies from 4.6 to 4.7 GeV. © 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.eninfo:eu-repo/semantics/openAccessArticle1065WOS:0008986669000012-s2.0-85139627299Q110.1103/PhysRevD.106.052012N/A