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Observation of e+e- →π+π-ψ (3770) and D1 (2420)0 D ̄ 0+ c. c. / The BELLE collaboration.

In: Physical Review D, Vol. 100, No. 3, 032005, 13.08.2019.

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

Harvard

The BELLE collaboration 2019, 'Observation of e+e- →π+π-ψ (3770) and D1 (2420)0 D ̄ 0+ c. c.', Physical Review D, vol. 100, no. 3, 032005. https://doi.org/10.1103/PhysRevD.100.032005

APA

The BELLE collaboration (2019). Observation of e+e- →π+π-ψ (3770) and D1 (2420)0 D ̄ 0+ c. c. Physical Review D, 100(3), [032005]. https://doi.org/10.1103/PhysRevD.100.032005

Vancouver

The BELLE collaboration. Observation of e+e- →π+π-ψ (3770) and D1 (2420)0 D ̄ 0+ c. c. Physical Review D. 2019 Aug 13;100(3):032005. doi: 10.1103/PhysRevD.100.032005

Author

The BELLE collaboration. / Observation of e+e- →π+π-ψ (3770) and D1 (2420)0 D ̄ 0+ c. c. In: Physical Review D. 2019 ; Vol. 100, No. 3.

BibTeX

@article{3dc912a320714c9ca172a70fb6710bb2,
title = "Observation of e+e- →π+π-ψ (3770) and D1 (2420)0 D{\= } 0+ c. c.",
abstract = "Several intermediate states of the reaction channels e+e-→π+π-D0{\=D}0 and e+e-→π+π-D+D- are studied using the data samples collected with the BESIII detector at center-of-mass energies above 4.08 GeV. For the first time in this final state, a ψ(3770) signal is seen in the D{\=D} invariant mass spectrum, with a statistical significance of 5.2σ at s=4.42 GeV. There is also evidence for this resonance at s=4.26 and 4.36 GeV with statistical significance of 3.2σ and 3.3σ, respectively. In addition, the Born cross section of e+e-→π+π-ψ(3770) is measured. The proposed heavy-quark-spin-symmetry partner of the X(3872), the state X2(4013), is also searched for in the D{\=D} invariant mass spectra. No obvious signal is found. The upper limit of the Born cross section of the process e+e-→ρ0X2(4013) combined with the branching fraction is measured. Also, the processes e+e-→D1(2420){\=D}+c.c. are investigated. The neutral mode with D1(2420)0→D0π+π- is reported with statistical significance of 7.4σ at s=4.42 GeV for the first time, and evidence with statistical significance of 3.2σ and 3.3σ at s=4.36 and 4.60 GeV is seen, respectively. No evident signal for the process e+e-→D1(2420)0{\=D}0+c.c.,D1(2420)0→D∗+π- is reported. Evidence for e+e-→D1(2420)+D-+c.c.,D1(2420)+→D+π+π- is reported with statistical significance of 3.1σ and 3.0σ at s=4.36 and 4.42 GeV, respectively.",
keywords = "CHARMONIUM",
author = "{The BELLE collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson 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 {Baldini Ferroli}, R. and {Balossino Balossino}, I. 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 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 J. Chai and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and Chen, {D. Y.} and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {Y. B.} and W. Cheng and G. Cibinetto and F. Cossio and Cui, {X. F.} and Dai, {H. L.} and Dai, {J. P.} and Dai, {X. C.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
note = "Publisher Copyright: {\textcopyright} 2019 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 SCOAP . ",
year = "2019",
month = aug,
day = "13",
doi = "10.1103/PhysRevD.100.032005",
language = "English",
volume = "100",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "3",

}

RIS

TY - JOUR

T1 - Observation of e+e- →π+π-ψ (3770) and D1 (2420)0 D ̄ 0+ c. c.

AU - The BELLE collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

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 - Baldini Ferroli, R.

AU - Balossino 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 - 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 - Chai, J.

AU - Chang, J. F.

AU - Chang, W. L.

AU - Chelkov, G.

AU - Chen, D. Y.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, Y. B.

AU - Cheng, W.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Cui, X. F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dai, X. C.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

N1 - Publisher Copyright: © 2019 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 SCOAP .

PY - 2019/8/13

Y1 - 2019/8/13

N2 - Several intermediate states of the reaction channels e+e-→π+π-D0D̄0 and e+e-→π+π-D+D- are studied using the data samples collected with the BESIII detector at center-of-mass energies above 4.08 GeV. For the first time in this final state, a ψ(3770) signal is seen in the DD̄ invariant mass spectrum, with a statistical significance of 5.2σ at s=4.42 GeV. There is also evidence for this resonance at s=4.26 and 4.36 GeV with statistical significance of 3.2σ and 3.3σ, respectively. In addition, the Born cross section of e+e-→π+π-ψ(3770) is measured. The proposed heavy-quark-spin-symmetry partner of the X(3872), the state X2(4013), is also searched for in the DD̄ invariant mass spectra. No obvious signal is found. The upper limit of the Born cross section of the process e+e-→ρ0X2(4013) combined with the branching fraction is measured. Also, the processes e+e-→D1(2420)D̄+c.c. are investigated. The neutral mode with D1(2420)0→D0π+π- is reported with statistical significance of 7.4σ at s=4.42 GeV for the first time, and evidence with statistical significance of 3.2σ and 3.3σ at s=4.36 and 4.60 GeV is seen, respectively. No evident signal for the process e+e-→D1(2420)0D̄0+c.c.,D1(2420)0→D∗+π- is reported. Evidence for e+e-→D1(2420)+D-+c.c.,D1(2420)+→D+π+π- is reported with statistical significance of 3.1σ and 3.0σ at s=4.36 and 4.42 GeV, respectively.

AB - Several intermediate states of the reaction channels e+e-→π+π-D0D̄0 and e+e-→π+π-D+D- are studied using the data samples collected with the BESIII detector at center-of-mass energies above 4.08 GeV. For the first time in this final state, a ψ(3770) signal is seen in the DD̄ invariant mass spectrum, with a statistical significance of 5.2σ at s=4.42 GeV. There is also evidence for this resonance at s=4.26 and 4.36 GeV with statistical significance of 3.2σ and 3.3σ, respectively. In addition, the Born cross section of e+e-→π+π-ψ(3770) is measured. The proposed heavy-quark-spin-symmetry partner of the X(3872), the state X2(4013), is also searched for in the DD̄ invariant mass spectra. No obvious signal is found. The upper limit of the Born cross section of the process e+e-→ρ0X2(4013) combined with the branching fraction is measured. Also, the processes e+e-→D1(2420)D̄+c.c. are investigated. The neutral mode with D1(2420)0→D0π+π- is reported with statistical significance of 7.4σ at s=4.42 GeV for the first time, and evidence with statistical significance of 3.2σ and 3.3σ at s=4.36 and 4.60 GeV is seen, respectively. No evident signal for the process e+e-→D1(2420)0D̄0+c.c.,D1(2420)0→D∗+π- is reported. Evidence for e+e-→D1(2420)+D-+c.c.,D1(2420)+→D+π+π- is reported with statistical significance of 3.1σ and 3.0σ at s=4.36 and 4.42 GeV, respectively.

KW - CHARMONIUM

UR - http://www.scopus.com/inward/record.url?scp=85072576302&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.100.032005

DO - 10.1103/PhysRevD.100.032005

M3 - Article

AN - SCOPUS:85072576302

VL - 100

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 3

M1 - 032005

ER -

ID: 21613967