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Observation of the y (4220) and y (4390) in the process e+e-→ηJ/ψ. / BESIII Collaboration.

In: Physical Review D, Vol. 102, No. 3, 031101, 15.08.2020.

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

Harvard

BESIII Collaboration 2020, 'Observation of the y (4220) and y (4390) in the process e+e-→ηJ/ψ', Physical Review D, vol. 102, no. 3, 031101. https://doi.org/10.1103/PhysRevD.102.031101

APA

BESIII Collaboration (2020). Observation of the y (4220) and y (4390) in the process e+e-→ηJ/ψ. Physical Review D, 102(3), [031101]. https://doi.org/10.1103/PhysRevD.102.031101

Vancouver

BESIII Collaboration. Observation of the y (4220) and y (4390) in the process e+e-→ηJ/ψ. Physical Review D. 2020 Aug 15;102(3):031101. doi: 10.1103/PhysRevD.102.031101

Author

BESIII Collaboration. / Observation of the y (4220) and y (4390) in the process e+e-→ηJ/ψ. In: Physical Review D. 2020 ; Vol. 102, No. 3.

BibTeX

@article{8eda65f21d224e4c83d5ca6a3198dad9,
title = "Observation of the y (4220) and y (4390) in the process e+e-→ηJ/ψ",
abstract = "The cross sections of the process e+e-→ηJ/ψ at center-of-mass energies (s) between 3.81 and 4.60 GeV are measured with high precision by using data samples collected with the BESIII detector operating at the BEPCII storage ring. Three structures are observed by analyzing the line shape of the measured cross sections, and a maximum-likelihood fit including three resonances is performed by assuming the lowest lying structure is the ψ(4040). For the other resonances, we obtain masses of (4218.6±3.8±2.5) and (4382.0±13.3±1.7) MeV/c2 with corresponding widths of (82.0±5.7±0.4) and (135.8±60.8±22.5) MeV, respectively, where the first uncertainties are statistical and the second ones systematic. The measured resonant parameters are consistent with those of the Y(4220) and Y(4390) from previous measurements of different final states. For the first time, we observe the decays of the Y(4220) and Y(4390) into ηJ/ψ final states.",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson and S. Ahmed and M. Albrecht and A. Amoroso and Q. An and Anita and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and I. Balossino and Y. Ban and K. Begzsuren and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Biernat and J. Bloms and A. Bortone and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and N. Cao and Cetin, {S. A.} and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and Chen, {D. Y.} and G. Chen and Chen, {H. S.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and Cheng, {W. S.} and G. Cibinetto and F. Cossio and Cui, {X. F.} and Dai, {H. L.} and Dai, {J. P.} and Dai, {X. C.} and A. Dbeyssi and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",
year = "2020",
month = aug,
day = "15",
doi = "10.1103/PhysRevD.102.031101",
language = "English",
volume = "102",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "3",

}

RIS

TY - JOUR

T1 - Observation of the y (4220) and y (4390) in the process e+e-→ηJ/ψ

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Amoroso, A.

AU - An, Q.

AU - Anita,

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Balossino, I.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Biernat, J.

AU - Bloms, J.

AU - Bortone, A.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cao, N.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, W. S.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dai, X. C.

AU - Dbeyssi, A.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

N1 - Publisher Copyright: © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2020/8/15

Y1 - 2020/8/15

N2 - The cross sections of the process e+e-→ηJ/ψ at center-of-mass energies (s) between 3.81 and 4.60 GeV are measured with high precision by using data samples collected with the BESIII detector operating at the BEPCII storage ring. Three structures are observed by analyzing the line shape of the measured cross sections, and a maximum-likelihood fit including three resonances is performed by assuming the lowest lying structure is the ψ(4040). For the other resonances, we obtain masses of (4218.6±3.8±2.5) and (4382.0±13.3±1.7) MeV/c2 with corresponding widths of (82.0±5.7±0.4) and (135.8±60.8±22.5) MeV, respectively, where the first uncertainties are statistical and the second ones systematic. The measured resonant parameters are consistent with those of the Y(4220) and Y(4390) from previous measurements of different final states. For the first time, we observe the decays of the Y(4220) and Y(4390) into ηJ/ψ final states.

AB - The cross sections of the process e+e-→ηJ/ψ at center-of-mass energies (s) between 3.81 and 4.60 GeV are measured with high precision by using data samples collected with the BESIII detector operating at the BEPCII storage ring. Three structures are observed by analyzing the line shape of the measured cross sections, and a maximum-likelihood fit including three resonances is performed by assuming the lowest lying structure is the ψ(4040). For the other resonances, we obtain masses of (4218.6±3.8±2.5) and (4382.0±13.3±1.7) MeV/c2 with corresponding widths of (82.0±5.7±0.4) and (135.8±60.8±22.5) MeV, respectively, where the first uncertainties are statistical and the second ones systematic. The measured resonant parameters are consistent with those of the Y(4220) and Y(4390) from previous measurements of different final states. For the first time, we observe the decays of the Y(4220) and Y(4390) into ηJ/ψ final states.

UR - http://www.scopus.com/inward/record.url?scp=85091885076&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.102.031101

DO - 10.1103/PhysRevD.102.031101

M3 - Article

AN - SCOPUS:85091885076

VL - 102

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 3

M1 - 031101

ER -

ID: 27890998