TY - JOUR
T1 - Observation of the decay χcJ → ω- ω ̄ +
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Adlarson, P.
AU - Aliberti, R.
AU - Kabana, S.
AU - The BESIII collaboration
N1 - Publisher Copyright:
© 2023 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.
PY - 2023/5/1
Y1 - 2023/5/1
N2 - Using an e+e- collision data sample of (27.08±0.14)×108 ψ(3686) events collected by the BESIII detector, we report the first observation of χcJ→ω-ω¯+ (J=0, 1, 2) decays with significances of 5.6σ, 6.4σ, and 18σ, respectively, where the χcJ mesons are produced in the radiative ψ(3686) decays. The branching fractions are determined to be B(χc0→ω-ω¯+)=(3.51±0.54±0.29)×10-5, B(χc1→ω-ω¯+)=(1.49±0.23±0.10)×10-5, and B(χc2→ω-ω¯+)=(4.52±0.24±0.18)×10-5, where the first and second uncertainties are statistical and systematic, respectively.
AB - Using an e+e- collision data sample of (27.08±0.14)×108 ψ(3686) events collected by the BESIII detector, we report the first observation of χcJ→ω-ω¯+ (J=0, 1, 2) decays with significances of 5.6σ, 6.4σ, and 18σ, respectively, where the χcJ mesons are produced in the radiative ψ(3686) decays. The branching fractions are determined to be B(χc0→ω-ω¯+)=(3.51±0.54±0.29)×10-5, B(χc1→ω-ω¯+)=(1.49±0.23±0.10)×10-5, and B(χc2→ω-ω¯+)=(4.52±0.24±0.18)×10-5, where the first and second uncertainties are statistical and systematic, respectively.
UR - https://www.scopus.com/pages/publications/85161041162
U2 - 10.1103/PhysRevD.107.092004
DO - 10.1103/PhysRevD.107.092004
M3 - Article
AN - SCOPUS:85161041162
SN - 2470-0010
VL - 107
JO - Physical Review D
JF - Physical Review D
IS - 9
M1 - 092004
ER -