Journal article
Measurement of cos2β in B0 →d (∗)h0 with D → KS0 π π- decays by a combined time-dependent Dalitz plot analysis of B a B ar and Belle data
I Adachi, T Adye, H Ahmed, JK Ahn, H Aihara, S Akar, MS Alam, J Albert, F Anulli, N Arnaud, DM Asner, D Aston, H Atmacan, T Aushev, R Ayad, I Badhrees, AM Bakich, S Banerjee, V Bansal, RJ Barlow Show all
Physical Review D | Published : 2018
Open access
Abstract
We report measurements of sin2β and cos2β using a time-dependent Dalitz plot analysis of B0→D(∗)h0 with D→KS0π+π- decays, where the light unflavored and neutral hadron h0 is a π0, η, or ω meson. The analysis uses a combination of the final data sets of the BaBar and Belle experiments containing 471×106 and 772×106 BB pairs collected at the (4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. We measure sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle is β=(22.5±4.4(stat)±1.2(syst)±0.6(model))°. The last quoted uncertainties are due to the composition o..
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Funding Acknowledgements
We thank the PEP-II and KEKB groups for the excellent operation of the accelerators. The BABAR experiment acknowledges the expertise and dedication of the computing organizations for their support. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. The Belle experiment wishes to acknowledge the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, the National Institute of Informatics, and the PNNL/EMSL computing group for valuable computing and SINET5 network support. This work was supported by 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; Austrian Science Fund under Grant No. P 26794-N20; the Canadian Natural Sciences and Engineering Research Council; the National Natural Science Foundation of China under Contracts No. 10575109, No. 10775142, No. 10875115, No. 11175187, No. 11475187, No. 11521505 and No. 11575017; the Chinese Academy of Science Center for Excellence in Particle Physics; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; the French Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules; the German Bundesministerium fur Bildung und Forschung, 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. 2014R1A2A2A01005286, No. 2015R1A2A2A01003280, No. 2015H1A2A1033649, No. 2016R1D1A1B01010135, No. 2016K1A3A7A09005603, and No. 2016R1D1A1B02012900; Radiation Science Research Institute, Foreign Large-Size Research Facility Application Supporting project and the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information; the Foundation for Fundamental Research on Matter of the Netherlands; the Research Council of Norway; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Education and Science of the Russian Federation and the Russian Foundation for Basic Research; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science and MINECO (Juan de la Cierva), Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; the Science and Technology Facilities Council of the United Kingdom; the Binational Science Foundation (U.S.-Israel); and the U.S. Department of Energy and the National Science Foundation. Individuals have received support from the Marie Curie EIF (European Union) and the A.P. Sloan Foundation (USA).