Cross section measurements of e+e- →ωχc0 from s =4.178 to 4.278 GeV CROSS SECTION MEASUREMENTS of ⋯ M. ABLIKIM et al.

(BESIII Collaboration)

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Abstract

The cross section of the process e+e-→ωχc0 is measured at center-of-mass energies from s=4.178 to 4.278 GeV using a data sample of 7 fb-1 collected with the BESIII detector operating at the BEPCII storage ring. The dependence of the cross section on s shows a resonant structure with mass of (4218.5±1.6(stat)±4.0(syst)) MeV/c2 and width of (28.2±3.9(stat)±1.6(syst)) MeV, respectively. This observation confirms and improves upon the result of a previous study. The angular distribution of the e+e-→ωχc0 process is extracted for the first time.

Original languageEnglish (US)
Article number091103
JournalPhysical Review D
Volume99
Issue number9
DOIs
StatePublished - May 1 2019

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© 2019 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.

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