Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al.

(Belle Collaboration)

doi:10.1103/PhysRevD.104.052005

Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al.

(Belle Collaboration)

Department of Physics

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

12 Citations (Scopus)

Abstract

Using a data sample of 980 fb-1 collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we present evidence for the ω(2012)- in the resonant substructure of ωc0→π+(K̄Ξ)- ((K̄Ξ)-=K-Ξ0+K̄0Ξ-) decays. The significance of the ω(2012)- signal is 4.2σ after considering the systematic uncertainties. The ratio of the branching fraction of ωc0→π+ω(2012)-→π+(K̄Ξ)- relative to that of ωc0→π+ω- is calculated to be 0.220±0.059(stat.)±0.035(syst.). The individual ratios of the branching fractions of the two isospin modes are also determined and found to be B(ωc0→π+ω(2012)-)×B(ω(2012)-→K-Ξ0)/B(ωc0→π+K-Ξ0)=(9.6±3.2(stat.) ±1.8(syst.))% and B(ωc0→π+ω(2012)-)×B(ω(2012)-→K̄0Ξ-)/B(ωc0→π+K̄0Ξ-)=(5.5±2.8(stat.) ±0.7(syst.))%.

Original language	English
Article number	052005
Journal	Physical Review D
Volume	104
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.104.052005
Publication status	Published - 2021 Sept 1

Bibliographical note

Publisher Copyright:
© 2021 authors. Published by the American Physical Society.

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevD.104.052005

Cite this

@article{020c29fbe2b545cf90fa60ef05fb3b49,

title = "Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al.",

abstract = "Using a data sample of 980 fb-1 collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we present evidence for the ω(2012)- in the resonant substructure of ωc0→π+({\=K}Ξ)- (({\=K}Ξ)-=K-Ξ0+{\=K}0Ξ-) decays. The significance of the ω(2012)- signal is 4.2σ after considering the systematic uncertainties. The ratio of the branching fraction of ωc0→π+ω(2012)-→π+({\=K}Ξ)- relative to that of ωc0→π+ω- is calculated to be 0.220±0.059(stat.)±0.035(syst.). The individual ratios of the branching fractions of the two isospin modes are also determined and found to be B(ωc0→π+ω(2012)-)×B(ω(2012)-→K-Ξ0)/B(ωc0→π+K-Ξ0)=(9.6±3.2(stat.) ±1.8(syst.))% and B(ωc0→π+ω(2012)-)×B(ω(2012)-→{\=K}0Ξ-)/B(ωc0→π+{\=K}0Ξ-)=(5.5±2.8(stat.) ±0.7(syst.))%.",

author = "{(Belle Collaboration)} and Y. Li and Tang, {S. S.} and S. Jia and Shen, {C. P.} and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and P. Behera and M. Bessner and T. Bilka and J. Biswal and A. Bozek and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and D. {\v C}ervenkov and Chang, {M. C.} and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Cho, {S. J.} and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and S. Das and N. Dash and {De Nardo}, G. and {De Pietro}, G. and {Di Capua}, F. and Z. Dole{\v Z}al and Dong, {T. V.} and D. Epifanov and T. Ferber and Fulsom, {B. G.} and R. Garg and E. Won",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society.",

year = "2021",

month = sep,

day = "1",

doi = "10.1103/PhysRevD.104.052005",

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T1 - Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al.

AU - (Belle Collaboration)

AU - Li, Y.

AU - Tang, S. S.

AU - Jia, S.

AU - Shen, C. P.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bahinipati, S.

AU - Behera, P.

AU - Bessner, M.

AU - Bilka, T.

AU - Biswal, J.

AU - Bozek, A.

AU - Bračko, M.

AU - Branchini, P.

AU - Browder, T. E.

AU - Budano, A.

AU - Campajola, M.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Cho, S. J.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Das, S.

AU - Dash, N.

AU - De Nardo, G.

AU - De Pietro, G.

AU - Di Capua, F.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Epifanov, D.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Won, E.

PY - 2021/9/1

Y1 - 2021/9/1

N2 - Using a data sample of 980 fb-1 collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we present evidence for the ω(2012)- in the resonant substructure of ωc0→π+(K̄Ξ)- ((K̄Ξ)-=K-Ξ0+K̄0Ξ-) decays. The significance of the ω(2012)- signal is 4.2σ after considering the systematic uncertainties. The ratio of the branching fraction of ωc0→π+ω(2012)-→π+(K̄Ξ)- relative to that of ωc0→π+ω- is calculated to be 0.220±0.059(stat.)±0.035(syst.). The individual ratios of the branching fractions of the two isospin modes are also determined and found to be B(ωc0→π+ω(2012)-)×B(ω(2012)-→K-Ξ0)/B(ωc0→π+K-Ξ0)=(9.6±3.2(stat.) ±1.8(syst.))% and B(ωc0→π+ω(2012)-)×B(ω(2012)-→K̄0Ξ-)/B(ωc0→π+K̄0Ξ-)=(5.5±2.8(stat.) ±0.7(syst.))%.

AB - Using a data sample of 980 fb-1 collected with the Belle detector operating at the KEKB asymmetric-energy e+e- collider, we present evidence for the ω(2012)- in the resonant substructure of ωc0→π+(K̄Ξ)- ((K̄Ξ)-=K-Ξ0+K̄0Ξ-) decays. The significance of the ω(2012)- signal is 4.2σ after considering the systematic uncertainties. The ratio of the branching fraction of ωc0→π+ω(2012)-→π+(K̄Ξ)- relative to that of ωc0→π+ω- is calculated to be 0.220±0.059(stat.)±0.035(syst.). The individual ratios of the branching fractions of the two isospin modes are also determined and found to be B(ωc0→π+ω(2012)-)×B(ω(2012)-→K-Ξ0)/B(ωc0→π+K-Ξ0)=(9.6±3.2(stat.) ±1.8(syst.))% and B(ωc0→π+ω(2012)-)×B(ω(2012)-→K̄0Ξ-)/B(ωc0→π+K̄0Ξ-)=(5.5±2.8(stat.) ±0.7(syst.))%.

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U2 - 10.1103/PhysRevD.104.052005

DO - 10.1103/PhysRevD.104.052005

M3 - Article

AN - SCOPUS:85114895520

SN - 2470-0010

VL - 104

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052005

ER -

Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- EVIDENCE for the DECAY ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)- ... LI Y. et al.

Abstract

Bibliographical note

ASJC Scopus subject areas

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