Study of J/ψ and ψ(3686) decay to ΛΛ¯ and Σ0Σ¯0 final states

M. Ablikim; M. N. Achasov; S. Ahmed; M. Albrecht; A. Amoroso; F. F. An; Q. An; J. Z. Bai; Y. Bai; O. Bakina; R. Baldini Ferroli; Y. Ban; D. W. Bennett; J. V. Bennett; N. Berger; 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. Chai; J. F. Chang; G. Chelkov; G. Chen; H. S. Chen; J. C. Chen; M. L. Chen; S. J. Chen; X. R. Chen; Y. B. Chen; X. K. Chu; G. Cibinetto; H. L. Dai; J. P. Dai; A. Dbeyssi; D. Dedovich; Z. Y. Deng; A. Denig; I. Denysenko; M. Destefanis; H. Muramatsu; R. Poling; (BESIII Collaboration)

doi:10.1103/PhysRevD.95.052003

Study of J/ψ and ψ(3686) decay to ΛΛ¯ and Σ0Σ¯0 final states

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

Physics and Astronomy (Twin Cities)

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

39 Scopus citations

Abstract

Using 1310.6×106 J/ψ and 447.9×106 ψ(3686) events collected with the BESIII detector at the BEPCII e+e- collider, the branching fractions and the angular distributions of J/ψ and ψ(3686) decays to ΛΛand Σ0Σ-0 final states are measured. The branching fractions are determined, with much improved precision, to be 19.43±0.03±0.33, 11.64±0.04±0.23, 3.97±0.02±0.12 and 2.44±0.03±0.11 for J/ψ→ΛΛ-, J/ψ→Σ0Σ-0, ψ(3686)→ΛΛand ψ(3686)→Σ0Σ-0, respectively. The polar angular distributions of ψ(3686) decays are measured for the first time, while those of J/ψ decays are measured with much improved precision. In addition, the ratios of branching fractions B(ψ(3686)→ΛΛ-)B(J/ψ→ΛΛ-) and B(ψ(3686)→Σ0Σ-0)B(J/ψ→Σ0Σ-0) are determined to test the "12% rule."

Original language	English (US)
Article number	052003
Journal	Physical Review D
Volume	95
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.95.052003
State	Published - Mar 2017

Bibliographical note

Publisher Copyright:
© 2017 American Physical Society.

Publisher link

10.1103/PhysRevD.95.052003

Find It

Find It at U of M Libraries

Cite this

Ablikim, M., Achasov, M. N., Ahmed, S., Albrecht, M., Amoroso, A., An, F. F., An, Q., Bai, J. Z., Bai, Y., Bakina, O., Baldini Ferroli, R., Ban, Y., Bennett, D. W., Bennett, J. V., Berger, N., Bertani, M., Bettoni, D., Bian, J. M., Bianchi, F., ... (BESIII Collaboration) (2017). Study of J/ψ and ψ(3686) decay to ΛΛ¯ and Σ0Σ¯0 final states. Physical Review D, 95(5), [052003]. https://doi.org/10.1103/PhysRevD.95.052003

Ablikim, M, Achasov, MN, Ahmed, S, Albrecht, M, Amoroso, A, An, FF, An, Q, Bai, JZ, Bai, Y, Bakina, O, Baldini Ferroli, R, Ban, Y, Bennett, DW, Bennett, JV, Berger, N, 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, Chai, J, Chang, JF, Chelkov, G, Chen, G, Chen, HS, Chen, JC, Chen, ML, Chen, SJ, Chen, XR, Chen, YB, Chu, XK, Cibinetto, G, Dai, HL, Dai, JP, Dbeyssi, A, Dedovich, D, Deng, ZY, Denig, A, Denysenko, I, Destefanis, M, Muramatsu, H, Poling, R & (BESIII Collaboration) 2017, 'Study of J/ψ and ψ(3686) decay to ΛΛ¯ and Σ0Σ¯0 final states', Physical Review D, vol. 95, no. 5, 052003. https://doi.org/10.1103/PhysRevD.95.052003

@article{be7f4e7967c84012b95ec728703fbc0a,

title = "Study of J/ψ and ψ(3686) decay to ΛΛ¯ and Σ0Σ¯0 final states",

abstract = "Using 1310.6×106 J/ψ and 447.9×106 ψ(3686) events collected with the BESIII detector at the BEPCII e+e- collider, the branching fractions and the angular distributions of J/ψ and ψ(3686) decays to ΛΛand Σ0Σ-0 final states are measured. The branching fractions are determined, with much improved precision, to be 19.43±0.03±0.33, 11.64±0.04±0.23, 3.97±0.02±0.12 and 2.44±0.03±0.11 for J/ψ→ΛΛ-, J/ψ→Σ0Σ-0, ψ(3686)→ΛΛand ψ(3686)→Σ0Σ-0, respectively. The polar angular distributions of ψ(3686) decays are measured for the first time, while those of J/ψ decays are measured with much improved precision. In addition, the ratios of branching fractions B(ψ(3686)→ΛΛ-)B(J/ψ→ΛΛ-) and B(ψ(3686)→Σ0Σ-0)B(J/ψ→Σ0Σ-0) are determined to test the {"}12% rule.{"}",

author = "M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger 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 J. Chai 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 Chen, {X. R.} and Chen, {Y. B.} 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 I. Denysenko and M. Destefanis and H. Muramatsu and R. Poling and {(BESIII Collaboration)}",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = mar,

doi = "10.1103/PhysRevD.95.052003",

language = "English (US)",

volume = "95",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "5",

}

TY - JOUR

T1 - Study of J/ψ and ψ(3686) decay to ΛΛ¯ and Σ0Σ¯0 final states

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

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 - Chai, J.

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. R.

AU - Chen, Y. B.

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 - Denysenko, I.

AU - Destefanis, M.

AU - Muramatsu, H.

AU - Poling, R.

AU - (BESIII Collaboration)

PY - 2017/3

Y1 - 2017/3

N2 - Using 1310.6×106 J/ψ and 447.9×106 ψ(3686) events collected with the BESIII detector at the BEPCII e+e- collider, the branching fractions and the angular distributions of J/ψ and ψ(3686) decays to ΛΛand Σ0Σ-0 final states are measured. The branching fractions are determined, with much improved precision, to be 19.43±0.03±0.33, 11.64±0.04±0.23, 3.97±0.02±0.12 and 2.44±0.03±0.11 for J/ψ→ΛΛ-, J/ψ→Σ0Σ-0, ψ(3686)→ΛΛand ψ(3686)→Σ0Σ-0, respectively. The polar angular distributions of ψ(3686) decays are measured for the first time, while those of J/ψ decays are measured with much improved precision. In addition, the ratios of branching fractions B(ψ(3686)→ΛΛ-)B(J/ψ→ΛΛ-) and B(ψ(3686)→Σ0Σ-0)B(J/ψ→Σ0Σ-0) are determined to test the "12% rule."

AB - Using 1310.6×106 J/ψ and 447.9×106 ψ(3686) events collected with the BESIII detector at the BEPCII e+e- collider, the branching fractions and the angular distributions of J/ψ and ψ(3686) decays to ΛΛand Σ0Σ-0 final states are measured. The branching fractions are determined, with much improved precision, to be 19.43±0.03±0.33, 11.64±0.04±0.23, 3.97±0.02±0.12 and 2.44±0.03±0.11 for J/ψ→ΛΛ-, J/ψ→Σ0Σ-0, ψ(3686)→ΛΛand ψ(3686)→Σ0Σ-0, respectively. The polar angular distributions of ψ(3686) decays are measured for the first time, while those of J/ψ decays are measured with much improved precision. In addition, the ratios of branching fractions B(ψ(3686)→ΛΛ-)B(J/ψ→ΛΛ-) and B(ψ(3686)→Σ0Σ-0)B(J/ψ→Σ0Σ-0) are determined to test the "12% rule."

UR - http://www.scopus.com/inward/record.url?scp=85019833030&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019833030&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.95.052003

DO - 10.1103/PhysRevD.95.052003

M3 - Article

AN - SCOPUS:85019833030

SN - 2470-0010

VL - 95

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052003

ER -

Study of J/ψ and ψ(3686) decay to ΛΛ¯ and Σ0Σ¯0 final states

Abstract

Bibliographical note

Publisher link

Find It

Other files and links

Fingerprint

Cite this