Measurements of the branching fractions of the P-wave charmonium spin-singlet state hc(P11)→h+h−π0/η

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Measurements of the branching fractions of the P-wave charmonium spin-singlet state hc(P11)→h+h−π0/η. / BESIII Collaboration ; Мучной, Николай Юрьевич ; Николаев, Иван Борисович.

In: Physical Review D, Vol. 110, No. 3, 032023, 28.08.2024.

Research output: Contribution to journal › Article › peer-review

BibTeX

@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 Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",

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 - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

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