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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 изданияхстатьяРецензирование

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The BESIII Collaboration, Николаев ИБ, Мучной НЮ. Measurements of the branching fractions of the P -wave charmonium spin-singlet state hc(P11)→h+h−π0/η. Physical Review D. 2024 авг. 28;110(3):032023. doi: 10.1103/PhysRevD.110.032023

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@article{715293ddb2e9429b8197dc78dfe08713,
title = "Measurements of the branching fractions of the P -wave charmonium spin-singlet state hc(P11)→h+h−π0/η",
abstract = "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)",
author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and P. Adlarson and O. Afedulidis and X. c. Ai and R. Aliberti and A. Amoroso and Q. An and Y. Bai and O. Bakina and I. Balossino and Y. Ban and H.-R. Bao and V. Batozskaya and K. Begzsuren and N. Berger and M. Berlowski and M. Bertani and D. Bettoni and F. Bianchi and E. Bianco and A. Bortone and R. a. Briere and A. Brueggemann and Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",
year = "2024",
month = aug,
day = "28",
doi = "10.1103/PhysRevD.110.032023",
language = "English",
volume = "110",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "3",

}

RIS

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