TY - JOUR
T1 - Study of hc→3 (π+π-)π0, hc→2 (π+π-)ω, hc→2 (π+π-)π0η, hc→2 (π+π-)η, and hc→p p ¯
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Adlarson, P.
AU - Afedulidis, O.
AU - Kabana, S.
AU - The BESIII collaboration
N1 - Publisher Copyright:
© 2024 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 - 2024/4/1
Y1 - 2024/4/1
N2 - Based on (2712.4±14.1)×106 ψ(3686) events collected with the BESIII detector, we study the decays hc→3(π+π-)π0, hc→2(π+π-)ω, hc→2(π+π-)π0η, hc→2(π+π-)η, and hc→pp¯ via ψ(3686)→π0hc. The decay channel hc→3(π+π-)π0 is observed for the first time, and its branching fraction is determined to be (9.28±1.14±0.77)×10-3, where the first uncertainty is statistical and the second is systematic. In addition, first evidence is found for the modes hc→2(π+π-)π0η and hc→2(π+π-)ω with significances of 4.8σ and 4.7σ, and their branching fractions are determined to be (7.55±1.51±0.77)×10-3 and (4.00±0.86±0.35)×10-3, respectively. No significant signals of hc→2(π+π-)η and hc→pp¯ are observed, and the upper limits of the branching fractions of these decays are determined to be <6.19×10-4 and <4.40×10-5 at the 90% confidence level, respectively.
AB - Based on (2712.4±14.1)×106 ψ(3686) events collected with the BESIII detector, we study the decays hc→3(π+π-)π0, hc→2(π+π-)ω, hc→2(π+π-)π0η, hc→2(π+π-)η, and hc→pp¯ via ψ(3686)→π0hc. The decay channel hc→3(π+π-)π0 is observed for the first time, and its branching fraction is determined to be (9.28±1.14±0.77)×10-3, where the first uncertainty is statistical and the second is systematic. In addition, first evidence is found for the modes hc→2(π+π-)π0η and hc→2(π+π-)ω with significances of 4.8σ and 4.7σ, and their branching fractions are determined to be (7.55±1.51±0.77)×10-3 and (4.00±0.86±0.35)×10-3, respectively. No significant signals of hc→2(π+π-)η and hc→pp¯ are observed, and the upper limits of the branching fractions of these decays are determined to be <6.19×10-4 and <4.40×10-5 at the 90% confidence level, respectively.
UR - https://www.scopus.com/pages/publications/85192160783
U2 - 10.1103/PhysRevD.109.072018
DO - 10.1103/PhysRevD.109.072018
M3 - Article
AN - SCOPUS:85192160783
SN - 2470-0010
VL - 109
JO - Physical Review D
JF - Physical Review D
IS - 7
M1 - 072018
ER -