Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Measurements of the branching fractions of the P -wave charmonium spin-singlet state hc(P11)→h+h−π0/η. / The BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.
в: Physical Review D, Том 110, № 3, 032023, 28.08.2024.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Measurements of the branching fractions of the P -wave charmonium spin-singlet state hc(P11)→h+h−π0/η
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Adlarson, P.
AU - Afedulidis, O.
AU - Ai, X. c.
AU - Aliberti, R.
AU - Amoroso, A.
AU - An, Q.
AU - Bai, Y.
AU - Bakina, O.
AU - Balossino, I.
AU - Ban, Y.
AU - Bao, H.-R.
AU - Batozskaya, V.
AU - Begzsuren, K.
AU - Berger, N.
AU - Berlowski, M.
AU - Bertani, M.
AU - Bettoni, D.
AU - Bianchi, F.
AU - Bianco, E.
AU - Bortone, A.
AU - Briere, R. a.
AU - Brueggemann, A.
AU - Николаев, Иван Борисович
AU - Мучной, Николай Юрьевич
PY - 2024/8/28
Y1 - 2024/8/28
N2 - Based on (2712.4±14.3)×106 ψ(3686) events, we investigate four hadronic decay modes of the P-wave charmonium spin-singlet state hc(1P1)→h+h-π0/η (h=π or K) via the process ψ(3686)→π0hc at BESIII. The hc→π+π-π0 decay is observed with a significance of 9.6σ after taking into account systematic uncertainties. Evidences for hc→K+K-π0 and hc→K+K-η are found with significances of 3.5σ and 3.3σ, respectively, after considering the systematic uncertainties. The branching fractions of these decays are measured to be B(hc→π+π-π0)=(1.36±0.16±0.14)×10-3, B(hc→K+K-π0)=(3.26±0.84±0.36)×10-4, and B(hc→K+K-η)=(3.13±1.08±0.38)×10-4, where the first uncertainties are statistical and the second are systematic. No significant signal of hc→π+π-η is found, and the upper limit of its decay branching fraction is determined to be B(hc→π+π-η)
AB - Based on (2712.4±14.3)×106 ψ(3686) events, we investigate four hadronic decay modes of the P-wave charmonium spin-singlet state hc(1P1)→h+h-π0/η (h=π or K) via the process ψ(3686)→π0hc at BESIII. The hc→π+π-π0 decay is observed with a significance of 9.6σ after taking into account systematic uncertainties. Evidences for hc→K+K-π0 and hc→K+K-η are found with significances of 3.5σ and 3.3σ, respectively, after considering the systematic uncertainties. The branching fractions of these decays are measured to be B(hc→π+π-π0)=(1.36±0.16±0.14)×10-3, B(hc→K+K-π0)=(3.26±0.84±0.36)×10-4, and B(hc→K+K-η)=(3.13±1.08±0.38)×10-4, where the first uncertainties are statistical and the second are systematic. No significant signal of hc→π+π-η is found, and the upper limit of its decay branching fraction is determined to be B(hc→π+π-η)
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85204606062&origin=inward&txGid=14cb33a06ae7c9d86188a93ada9f0da0
UR - https://www.mendeley.com/catalogue/955a09e3-8ed3-3f84-ae61-50e5f9694c0e/
U2 - 10.1103/PhysRevD.110.032023
DO - 10.1103/PhysRevD.110.032023
M3 - Article
VL - 110
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 3
M1 - 032023
ER -
ID: 62705865