Using a sample of (10087 +/- 44) x 10(6) J/psi events collected with the BESIII detector at the BEPCII collider, the first evidence for the doubly Okubo-Zweig-Iizuka (OZI)-suppressed decay eta(c) -> omega phi is reported with a significance of 4.0 sigma. The branching fraction of eta(c) -> omega phi is measured to be B(eta(c) -> omega phi) = (3.86 +/- 0.92 +/- 0.62) x 10(-5), where the first uncertainty is statistical and the second is systematic. This result provides valuable insights into the underlying mechanisms of charmonium decays, particularly for processes such as eta(c) -> VV (where V represents a vector meson).

Evidence of doubly OZI-suppressed decay ηc → ωϕ in the radiative decay J/ψ → γηc

A. Amoroso;F. Bianchi;A. Bortone;M. Destefanis;F. De Mori;M. Greco;M. Maggiora;S. Marcello;S. Sosio;S. Spataro;
2025-01-01

Abstract

Using a sample of (10087 +/- 44) x 10(6) J/psi events collected with the BESIII detector at the BEPCII collider, the first evidence for the doubly Okubo-Zweig-Iizuka (OZI)-suppressed decay eta(c) -> omega phi is reported with a significance of 4.0 sigma. The branching fraction of eta(c) -> omega phi is measured to be B(eta(c) -> omega phi) = (3.86 +/- 0.92 +/- 0.62) x 10(-5), where the first uncertainty is statistical and the second is systematic. This result provides valuable insights into the underlying mechanisms of charmonium decays, particularly for processes such as eta(c) -> VV (where V represents a vector meson).
2025
112
1
1
11
https://journals.aps.org/prd/pdf/10.1103/y97r-z78g
BESIII experiment, ZWEIG-IIZUKA-RULE, Charmonium decays
M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, Q. An, Y. Bai, O. Bakina , Y. Ban , H.-R. Bao , V. Batozskaya , , K. B...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/2118810
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