Research output: Contribution to journal › Article › peer-review
Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)-. / The BELLE collaboration.
In: Physical Review D, Vol. 104, No. 5, 052005, 01.09.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Evidence for the decay ωc0 →π+ ω (2012)- →π+ (K ¯ Ξ)-
AU - The 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 - Epifanov, D.
AU - Gudkova, K.
AU - Korobov, A.
AU - Kovalenko, E.
AU - Krokovny, P.
AU - Kuzmin, A.
AU - Matvienko, D.
AU - Usov, Y.
AU - Vinokurova, A.
AU - Zhilich, V.
N1 - Funding Information: We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, No. FT130100303; Austrian Science Fund (FWF); the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, No. 11705209, No. 11761141009, No. 11975076, No. 12042509, No. 12135005; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang Program under Grant No. 18PJ1401000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1D1A1B01010135, No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. 2018R1D1A1B07047294, No. 2019K1A3A7A09033840, No. 2019R1I1A3A01058933; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement No. 14.W03.31.0026; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation. Publisher Copyright: © 2021 authors. Published by the American Physical Society.
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.))%.
UR - http://www.scopus.com/inward/record.url?scp=85114895520&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.104.052005
DO - 10.1103/PhysRevD.104.052005
M3 - Article
AN - SCOPUS:85114895520
VL - 104
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 5
M1 - 052005
ER -
ID: 34217651