Measurement of e+e− → ωη′ cross sections at s = 2.000 to 3.080 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, N. Kalantar-Nayestanaki, R. Kappert, M. Kavatsyuk, J. Messchendorp, V. Rodin

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Abstract

We measured the Born cross sections for the process e+e− → ωη′ at 22 center-of-mass energies from 2.000 to 3.080 GeV with the BESIII detector at the BEPCII collider. We observed a resonant structure with a statistical significance of 9.6σ. A Breit-Wigner fit determines its mass to be MR = (2153 ± 30 ± 31) MeV/c2 and its width to be ΓR = (167 ± 77 ± 7) MeV, where the first uncertainties are statistical and the second are systematic.
Original languageEnglish
Article number93
Number of pages18
JournalJournal of High Energy Physics
Volume2024
Issue number7
DOIs
Publication statusPublished - Jul-2024

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