Measurement of the charm-mixing parameter y(CP) in D-0 -> K-S(0)omega decays at Belle
M Nayak, D Cinabro, I Adachi, H Aihara, S Al Said, DM Asner, H Atmacan, T Aushev, R Ayad, V Babu, S Bahinipati, P Behera, C Beleno, J Bennett, V Bhardwaj, B Bhuyan, J Biswal, G Bonvicini, A Bozek, M Bracko Show all
Physical Review D: Particles, Fields, Gravitation and Cosmology | American Physical Society | Published : 2020
We report the first measurement of the charm-mixing parameter yCP in D0 decays to the CP-odd final state K0Sω. The study uses the full Belle e+e−annihilation data sample of 976fb−1 taken at or near the Υ(4S)centre-of-mass energy. We find yCP=(0.96±0.91±0.62+0.17−0.00)%, where the first uncertainty is statistical, the second is systematic due to event selection and background, and the last is due to possible presence of CP-even decays in the data sample.
Related Projects (3)
Awarded by Australian Research Council
Awarded by National Natural Science Foundation of China
Awarded by Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)
Awarded by Shanghai Pujiang Program
Awarded by Ministry of Education, Youth and Sports of the Czech Republic
Awarded by National Research Foundation (NRF) of Korea
Awarded by Ministry of Science and Higher Education of the Russian Federation
We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and theKEKcomputer 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, and 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, and No. 11705209; 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; theDepartment ofScience andTechnology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1-D1A1B01010135, No. 2016R1-D1A1B-02012900, No. 2018R1A2B-3003643, No. 2018R1-A6A1A-06024970, No. 2018R1-D1A1B-07047294, No. 2019K1-A3A7A09033840, and No. 2019R1-I1A3A-01058933; 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.