Measurement of J/ψ → Ξ (1530)-Ξ  + and evidence for the radiative decay Ξ (1530)-→γ Ξ-MEASUREMENT of ... M. ABLIKIM et al.

(BESIII Collaboration)

doi:10.1103/PhysRevD.101.012004

Measurement of J/ψ → Ξ (1530)-Ξ + and evidence for the radiative decay Ξ (1530)-→γ Ξ-MEASUREMENT of ... M. ABLIKIM et al.

(BESIII Collaboration)

Physics and Astronomy (Twin Cities)

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

7 Scopus citations

Abstract

The SU(3)-flavor violating decay J/ψ→Ξ(1530)-Ξ++c.c. is studied using (1310.6±7.0)×106 J/ψ events collected with the BESIII detector at BEPCII, and the branching fraction is measured to be B(J/ψ→Ξ(1530)-Ξ++c.c.)=(3.17±0.02stat±0.08syst)×10-4. This result is consistent with previous measurements with an order of magnitude improved precision. The angular parameter for this decay is measured for the first time and is found to be α=-0.21±0.04stat±0.06syst. In addition, we report evidence for the radiative decay Ξ(1530)-→γΞ-with a significance of 3.9σ, including the systematic uncertainties. The 90% confidence level upper limit on the branching fraction is determined to be B(Ξ(1530)-→γΞ-)≤3.7%.

Original language	English (US)
Article number	012004
Journal	Physical Review D
Volume	101
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.101.012004
State	Published - Jan 8 2020

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© 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 SCOAP.

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@article{b32ec50904e14d0ea1e9a6f06636221e,

title = "Measurement of J/ψ → Ξ (1530)-Ξ + and evidence for the radiative decay Ξ (1530)-→γ Ξ-MEASUREMENT of ... M. ABLIKIM et al.",

abstract = "The SU(3)-flavor violating decay J/ψ→Ξ(1530)-Ξ++c.c. is studied using (1310.6±7.0)×106 J/ψ events collected with the BESIII detector at BEPCII, and the branching fraction is measured to be B(J/ψ→Ξ(1530)-Ξ++c.c.)=(3.17±0.02stat±0.08syst)×10-4. This result is consistent with previous measurements with an order of magnitude improved precision. The angular parameter for this decay is measured for the first time and is found to be α=-0.21±0.04stat±0.06syst. In addition, we report evidence for the radiative decay Ξ(1530)-→γΞ-with a significance of 3.9σ, including the systematic uncertainties. The 90% confidence level upper limit on the branching fraction is determined to be B(Ξ(1530)-→γΞ-)≤3.7%.",

author = "{(BESIII 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 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 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 H. Muramatsu and R. Poling",

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 SCOAP.",

year = "2020",

month = jan,

day = "8",

doi = "10.1103/PhysRevD.101.012004",

language = "English (US)",

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journal = "Physical Review D",

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TY - JOUR

T1 - Measurement of J/ψ → Ξ (1530)-Ξ + and evidence for the radiative decay Ξ (1530)-→γ Ξ-MEASUREMENT of ... M. ABLIKIM et al.

AU - (BESIII 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, 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 - Muramatsu, H.

AU - Poling, R.

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 SCOAP.

PY - 2020/1/8

Y1 - 2020/1/8

N2 - The SU(3)-flavor violating decay J/ψ→Ξ(1530)-Ξ++c.c. is studied using (1310.6±7.0)×106 J/ψ events collected with the BESIII detector at BEPCII, and the branching fraction is measured to be B(J/ψ→Ξ(1530)-Ξ++c.c.)=(3.17±0.02stat±0.08syst)×10-4. This result is consistent with previous measurements with an order of magnitude improved precision. The angular parameter for this decay is measured for the first time and is found to be α=-0.21±0.04stat±0.06syst. In addition, we report evidence for the radiative decay Ξ(1530)-→γΞ-with a significance of 3.9σ, including the systematic uncertainties. The 90% confidence level upper limit on the branching fraction is determined to be B(Ξ(1530)-→γΞ-)≤3.7%.

AB - The SU(3)-flavor violating decay J/ψ→Ξ(1530)-Ξ++c.c. is studied using (1310.6±7.0)×106 J/ψ events collected with the BESIII detector at BEPCII, and the branching fraction is measured to be B(J/ψ→Ξ(1530)-Ξ++c.c.)=(3.17±0.02stat±0.08syst)×10-4. This result is consistent with previous measurements with an order of magnitude improved precision. The angular parameter for this decay is measured for the first time and is found to be α=-0.21±0.04stat±0.06syst. In addition, we report evidence for the radiative decay Ξ(1530)-→γΞ-with a significance of 3.9σ, including the systematic uncertainties. The 90% confidence level upper limit on the branching fraction is determined to be B(Ξ(1530)-→γΞ-)≤3.7%.

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U2 - 10.1103/PhysRevD.101.012004

DO - 10.1103/PhysRevD.101.012004

M3 - Article

AN - SCOPUS:85078108503

SN - 2470-0010

VL - 101

JO - Physical Review D

JF - Physical Review D

IS - 1

M1 - 012004

ER -