Observation of ηc →ωω in J /ψ →γωω

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Observation of ηc →ωω in J /ψ →γωω. / BESIII Collaboration.

In: Physical Review D, Vol. 100, No. 5, 052012, 23.09.2019.

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

Harvard

BESIII Collaboration 2019, 'Observation of ηc →ωω in J /ψ →γωω', Physical Review D, vol. 100, no. 5, 052012. https://doi.org/10.1103/PhysRevD.100.052012

APA

BESIII Collaboration (2019). Observation of ηc →ωω in J /ψ →γωω. Physical Review D, 100(5), [052012]. https://doi.org/10.1103/PhysRevD.100.052012

Vancouver

BESIII Collaboration. Observation of ηc →ωω in J /ψ →γωω. Physical Review D. 2019 Sept 23;100(5):052012. doi: 10.1103/PhysRevD.100.052012

Author

BESIII Collaboration. / Observation of ηc →ωω in J /ψ →γωω. In: Physical Review D. 2019 ; Vol. 100, No. 5.

BibTeX

@article{2d0f7a6d35d4415088ebc0c5752c978c,

title = "Observation of ηc →ωω in J /ψ →γωω",

abstract = "Using a sample of (1310.6±7.0)×106 J/ψ events recorded with the Beijing Spectrometer III detector at the Beijing Electron Positron Collider II, we report the observation of the decay of the (11S0) charmonium state ηc into a pair of ω mesons in the process J/ψ→γωω. The branching fraction is measured for the first time to be B(ηc→ωω)=(2.88±0.10±0.46±0.68)×10-3, where the first uncertainty is statistical, the second systematic, and the third is from the uncertainty of B(J/ψ→γηc). The mass and width of the ηc are determined as M=(2985.9±0.7±2.1) MeV/c2 and Γ=(33.8±1.6±4.1) MeV.",

keywords = "ANNIHILATION, AMPLITUDES, STATES, DECAY",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and M. Alekseev and A. Amoroso and An, {F. F.} and Q. An and Y. Bai and O. Bakina and Ferroli, {R. Baldini} and Y. Ban and K. Begzsuren and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and W. Cheng and Chu, {X. K.} and G. Cibinetto and F. Cossio and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and A. Denig and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",

year = "2019",

month = sep,

day = "23",

doi = "10.1103/PhysRevD.100.052012",

language = "English",

volume = "100",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "5",

}

RIS

TY - JOUR

T1 - Observation of ηc →ωω in J /ψ →γωω

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Alekseev, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, Y.

AU - Bakina, O.

AU - Ferroli, R. Baldini

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, W.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

PY - 2019/9/23

Y1 - 2019/9/23

N2 - Using a sample of (1310.6±7.0)×106 J/ψ events recorded with the Beijing Spectrometer III detector at the Beijing Electron Positron Collider II, we report the observation of the decay of the (11S0) charmonium state ηc into a pair of ω mesons in the process J/ψ→γωω. The branching fraction is measured for the first time to be B(ηc→ωω)=(2.88±0.10±0.46±0.68)×10-3, where the first uncertainty is statistical, the second systematic, and the third is from the uncertainty of B(J/ψ→γηc). The mass and width of the ηc are determined as M=(2985.9±0.7±2.1) MeV/c2 and Γ=(33.8±1.6±4.1) MeV.

AB - Using a sample of (1310.6±7.0)×106 J/ψ events recorded with the Beijing Spectrometer III detector at the Beijing Electron Positron Collider II, we report the observation of the decay of the (11S0) charmonium state ηc into a pair of ω mesons in the process J/ψ→γωω. The branching fraction is measured for the first time to be B(ηc→ωω)=(2.88±0.10±0.46±0.68)×10-3, where the first uncertainty is statistical, the second systematic, and the third is from the uncertainty of B(J/ψ→γηc). The mass and width of the ηc are determined as M=(2985.9±0.7±2.1) MeV/c2 and Γ=(33.8±1.6±4.1) MeV.

KW - ANNIHILATION

KW - AMPLITUDES

KW - STATES

KW - DECAY

UR - http://www.scopus.com/inward/record.url?scp=85072965682&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.100.052012

DO - 10.1103/PhysRevD.100.052012

M3 - Article

AN - SCOPUS:85072965682

VL - 100

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 5

M1 - 052012

ER -

ID: 23379686