Measurement of the branching fraction for ψ(3686) ωK+K-

BESIII Collaboration

doi:10.1103/PhysRevD.89.112006

Measurement of the branching fraction for ψ(3686) ωK⁺K^-

BESIII Collaboration

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

With 1.06 × 10⁸ ψ(3686) events collected with the BESIII detector, the branching fraction of ψ (3686) → ωK⁺K^- is measured to be (1.54 ± 0.04 ± 0.11) × 10^-4. This is the most precise result to date, due to the largest ψ(3686) sample, improved signal reconstruction efficiency, good simulation of the detector performance, and a more accurate knowledge of the continuum contribution. Using the branching fraction of J/ψ → ωK⁺K^-, the ratio β(ψ(3868) → ωK⁺K^-)/β(J/ψ → ωK⁺K^-) is determined to be (18.4 ± 3.7)%. This constitutes a significantly improved test of the 12% rule, with the uncertainty now dominated by the J/ψ branching fraction.

Lingua originale	Inglese
Numero di articolo	112006
Rivista	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	89
Numero di pubblicazione	11
DOI	https://doi.org/10.1103/PhysRevD.89.112006
Stato di pubblicazione	Pubblicato - 24 giu 2014
Pubblicato esternamente	Sì

Accesso al documento

10.1103/PhysRevD.89.112006

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@article{ab86966e165543a8bdbbaca916500163,

title = "Measurement of the branching fraction for ψ(3686) ωK+K- ",

abstract = "With 1.06 × 108 ψ(3686) events collected with the BESIII detector, the branching fraction of ψ (3686) → ωK+K- is measured to be (1.54 ± 0.04 ± 0.11) × 10-4. This is the most precise result to date, due to the largest ψ(3686) sample, improved signal reconstruction efficiency, good simulation of the detector performance, and a more accurate knowledge of the continuum contribution. Using the branching fraction of J/ψ → ωK+K-, the ratio β(ψ(3868) → ωK+K-)/β(J/ψ → ωK+K-) is determined to be (18.4 ± 3.7)\%. This constitutes a significantly improved test of the 12\% rule, with the uncertainty now dominated by the J/ψ branching fraction.",

author = "\{BESIII Collaboration\} and M. Ablikim and Achasov, \{M. N.\} and Ai, \{X. C.\} and O. Albayrak and M. Albrecht and Ambrose, \{D. J.\} 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 Bian, \{J. M.\} and E. Boger and O. Bondarenko and I. Boyko and S. Braun 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, \{J. C.\} and Chen, \{M. L.\} and Chen, \{S. J.\} and X. Chen and Chen, \{X. R.\} and Chen, \{Y. B.\} and Cheng, \{H. P.\} and Chu, \{X. K.\} and Chu, \{Y. P.\} and D. Cronin-Hennessy and Dai, \{H. L.\} and Dai, \{J. P.\} and D. Dedovich and Deng, \{Z. Y.\} and A. Denig and I. Denysenko and M. Destefanis and Ding, \{W. M.\} and Y. Ding and C. Dong",

year = "2014",

month = jun,

day = "24",

doi = "10.1103/PhysRevD.89.112006",

language = "English",

volume = "89",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Measurement of the branching fraction for ψ(3686) ωK+K-

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ai, X. C.

AU - Albayrak, O.

AU - Albrecht, M.

AU - Ambrose, D. J.

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 - Bian, J. M.

AU - Boger, E.

AU - Bondarenko, O.

AU - Boyko, I.

AU - Braun, S.

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, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, H. P.

AU - Chu, X. K.

AU - Chu, Y. P.

AU - Cronin-Hennessy, D.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Denysenko, I.

AU - Destefanis, M.

AU - Ding, W. M.

AU - Ding, Y.

AU - Dong, C.

PY - 2014/6/24

Y1 - 2014/6/24

N2 - With 1.06 × 108 ψ(3686) events collected with the BESIII detector, the branching fraction of ψ (3686) → ωK+K- is measured to be (1.54 ± 0.04 ± 0.11) × 10-4. This is the most precise result to date, due to the largest ψ(3686) sample, improved signal reconstruction efficiency, good simulation of the detector performance, and a more accurate knowledge of the continuum contribution. Using the branching fraction of J/ψ → ωK+K-, the ratio β(ψ(3868) → ωK+K-)/β(J/ψ → ωK+K-) is determined to be (18.4 ± 3.7)%. This constitutes a significantly improved test of the 12% rule, with the uncertainty now dominated by the J/ψ branching fraction.

AB - With 1.06 × 108 ψ(3686) events collected with the BESIII detector, the branching fraction of ψ (3686) → ωK+K- is measured to be (1.54 ± 0.04 ± 0.11) × 10-4. This is the most precise result to date, due to the largest ψ(3686) sample, improved signal reconstruction efficiency, good simulation of the detector performance, and a more accurate knowledge of the continuum contribution. Using the branching fraction of J/ψ → ωK+K-, the ratio β(ψ(3868) → ωK+K-)/β(J/ψ → ωK+K-) is determined to be (18.4 ± 3.7)%. This constitutes a significantly improved test of the 12% rule, with the uncertainty now dominated by the J/ψ branching fraction.

UR - https://www.scopus.com/pages/publications/84903690404

U2 - 10.1103/PhysRevD.89.112006

DO - 10.1103/PhysRevD.89.112006

M3 - Article

SN - 1550-7998

VL - 89

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 11

M1 - 112006