Improved measurements of branching fractions for ηc →φφ and ωφ

M. Ablikim; M. N. Achasov; X. C. Ai; O. Albayrak; M. Albrecht; D. J. Ambrose; A. Amoroso; F. F. An; Q. An; J. Z. Bai; R. Baldini Ferroli; Y. Ban; D. W. Bennett; J. V. Bennett; M. Bertani; D. Bettoni; J. M. Bian; F. Bianchi; E. Boger; I. Boyko; R. A. Briere; H. Cai; X. Cai; O. Cakir; A. Calcaterra; G. F. Cao; S. A. Cetin; J. F. Chang; G. Chelkov; G. Chen; H. S. Chen; H. Y. Chen; J. C. Chen; M. L. Chen; S. Chen; S. J. Chen; X. Chen; X. R. Chen; Y. B. Chen; H. P. Cheng; X. K. Chu; G. Cibinetto; H. L. Dai; J. P. Dai; A. Dbeyssi; D. Dedovich; Z. Y. Deng; A. Denig; H. Muramatsu; R. Poling; (BESIII Collaboration)

doi:10.1103/PhysRevD.95.092004

Improved measurements of branching fractions for ηc →φφ and ωφ

M. Ablikim, M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht, D. J. Ambrose, A. Amoroso, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, D. W. Bennett, J. V. Bennett, M. Bertani, D. Bettoni, J. M. Bian, F. Bianchi, E. Boger, I. BoykoR. A. Briere, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, H. Y. Chen, J. C. Chen, M. L. Chen, S. Chen, S. J. Chen, X. Chen, X. R. Chen, Y. B. Chen, H. P. Cheng, X. K. Chu, G. Cibinetto, H. L. Dai, J. P. Dai, A. Dbeyssi, D. Dedovich, Z. Y. Deng, A. Denig, H. Muramatsu, R. Poling, (BESIII Collaboration)

Physics and Astronomy (Twin Cities)

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Abstract

Using (223.7±1.4)×106 J/ψ events accumulated with the BESIII detector, we study ηc decays to φφ and ωφ final states. The branching fraction of ηc→φφ is measured to be Br(ηc→φφ)=(2.5±0.3-0.7+0.3±0.6)×10-3, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of Br(J/ψ→γηc). No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of ηc→ωφ is observed, and the upper limit on the branching fraction is determined to be Br(ηc→ωφ)<2.5×10-4 at the 90% confidence level.

Original language	English (US)
Article number	092004
Journal	Physical Review D
Volume	95
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.95.092004
State	Published - May 1 2017

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© 2017 American Physical Society.

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Ablikim, M., Achasov, M. N., Ai, X. C., Albayrak, O., Albrecht, M., Ambrose, D. J., Amoroso, A., An, F. F., An, Q., Bai, J. Z., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, F., Boger, E., ... (BESIII Collaboration) (2017). Improved measurements of branching fractions for ηc →φφ and ωφ. Physical Review D, 95(9), Article 092004. https://doi.org/10.1103/PhysRevD.95.092004

Ablikim, M, Achasov, MN, Ai, XC, Albayrak, O, Albrecht, M, Ambrose, DJ, Amoroso, A, An, FF, An, Q, Bai, JZ, Baldini Ferroli, R, Ban, Y, Bennett, DW, Bennett, JV, Bertani, M, Bettoni, D, Bian, JM, Bianchi, F, Boger, E, Boyko, I, Briere, RA, Cai, H, Cai, X, Cakir, O, Calcaterra, A, Cao, GF, Cetin, SA, Chang, JF, Chelkov, G, Chen, G, Chen, HS, Chen, HY, Chen, JC, Chen, ML, Chen, S, Chen, SJ, Chen, X, Chen, XR, Chen, YB, Cheng, HP, Chu, XK, Cibinetto, G, Dai, HL, Dai, JP, Dbeyssi, A, Dedovich, D, Deng, ZY, Denig, A, Muramatsu, H, Poling, R & (BESIII Collaboration) 2017, 'Improved measurements of branching fractions for ηc →φφ and ωφ', Physical Review D, vol. 95, no. 9, 092004. https://doi.org/10.1103/PhysRevD.95.092004

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title = "Improved measurements of branching fractions for ηc →φφ and ωφ",

abstract = "Using (223.7±1.4)×106 J/ψ events accumulated with the BESIII detector, we study ηc decays to φφ and ωφ final states. The branching fraction of ηc→φφ is measured to be Br(ηc→φφ)=(2.5±0.3-0.7+0.3±0.6)×10-3, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of Br(J/ψ→γηc). No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of ηc→ωφ is observed, and the upper limit on the branching fraction is determined to be Br(ηc→ωφ)<2.5×10-4 at the 90% confidence level.",

author = "M. Ablikim and Achasov, {M. N.} and Ai, {X. C.} and O. Albayrak and M. Albrecht and Ambrose, {D. J.} and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and {Baldini Ferroli}, R. and Y. Ban and Bennett, {D. W.} and Bennett, {J. V.} and M. Bertani and D. Bettoni and Bian, {J. M.} and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {H. Y.} and Chen, {J. C.} and Chen, {M. L.} and S. Chen and Chen, {S. J.} and X. Chen and Chen, {X. R.} and Chen, {Y. B.} and Cheng, {H. P.} and Chu, {X. K.} and G. Cibinetto and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and A. Denig and H. Muramatsu and R. Poling and {(BESIII Collaboration)}",

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year = "2017",

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AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ai, X. C.

AU - Albayrak, O.

AU - Albrecht, M.

AU - Ambrose, D. J.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bian, J. M.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, H. Y.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, H. P.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Muramatsu, H.

AU - Poling, R.

AU - (BESIII Collaboration)

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Using (223.7±1.4)×106 J/ψ events accumulated with the BESIII detector, we study ηc decays to φφ and ωφ final states. The branching fraction of ηc→φφ is measured to be Br(ηc→φφ)=(2.5±0.3-0.7+0.3±0.6)×10-3, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of Br(J/ψ→γηc). No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of ηc→ωφ is observed, and the upper limit on the branching fraction is determined to be Br(ηc→ωφ)<2.5×10-4 at the 90% confidence level.

AB - Using (223.7±1.4)×106 J/ψ events accumulated with the BESIII detector, we study ηc decays to φφ and ωφ final states. The branching fraction of ηc→φφ is measured to be Br(ηc→φφ)=(2.5±0.3-0.7+0.3±0.6)×10-3, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of Br(J/ψ→γηc). No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of ηc→ωφ is observed, and the upper limit on the branching fraction is determined to be Br(ηc→ωφ)<2.5×10-4 at the 90% confidence level.

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DO - 10.1103/PhysRevD.95.092004

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VL - 95

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092004

ER -

Improved measurements of branching fractions for ηc →φφ and ωφ

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