Measurements of branching fractions of leptonic and hadronic D s meson decays and extraction of the Ds meson decay constant

A Zupanc; I Adachi; H Aihara; K Arinstein; DM Asner; T Aushev; AM Bakich; A Bala; B Bhuyan; G Bonvicini; A Bozek; M Bračko; J Brodzicka; TE Browder; MC Chang; P Chang; V Chekelian; A Chen; P Chen; BG Cheon; K Chilikin; R Chistov; K Cho; V Chobanova; SK Choi; Y Choi; D Cinabro; J Dalseno; M Danilov; Z Doležal; Z Drásal; D Dutta; S Eidelman; H Farhat; JE Fast; T Ferber; V Gaur; N Gabyshev; S Ganguly; R Gillard; YM Goh; B Golob; J Haba; T Hara; K Hayasaka; H Hayashii; Y Horii; Y Hoshi; WS Hou; YB Hsiung; HJ Hyun; T Iijima; K Inami; A Ishikawa; R Itoh; Y Iwasaki; T Iwashita; I Jaegle; T Julius; E Kato; H Kawai; T Kawasaki; H Kichimi; C Kiesling; DY Kim; HO Kim; JB Kim; JH Kim; MJ Kim; YJ Kim; K Kinoshita; J Klucar; BR Ko; P Kodyš; S Korpar; P Križan; P Krokovny; B Kronenbitter; T Kuhr; T Kumita; A Kuzmin; YJ Kwon; JS Lange; SH Lee; J Li; J Libby; ZQ Liu; D Liventsev; P Lukin; H Miyata; R Mizuk; GB Mohanty; A Moll; R Mussa; E Nakano; M Nakao; E Nedelkovska; NK Nisar; S Nishida; O Nitoh

Journal article

Measurements of branching fractions of leptonic and hadronic D s meson decays and extraction of the Ds meson decay constant

A Zupanc, I Adachi, H Aihara, K Arinstein, DM Asner, T Aushev, AM Bakich, A Bala, B Bhuyan, G Bonvicini, A Bozek, M Bračko, J Brodzicka, TE Browder, MC Chang, P Chang, V Chekelian, A Chen, P Chen, BG Cheon Show all

Journal of High Energy Physics | Published : 2013

DOI: 10.1007/JHEP09(2013)139

Abstract

We present measurements of absolute branching fractions of hadronic and leptonic Ds+ decays to K -K+π+, K̄0K+, ηπ+, μ+νμ and τ+ντ and report a search for the leptonic Ds+ → e +νe decays. The results are obtained from a data sample of 913 fb-1 collected at or near the Y(4S ) and Y(5S ) resonances with the Belle detector at the KEKB asymmetric-energy e+e- collider. The branching fractions of hadronic decays are measured to be B(Ds+ → K-K+π+) = (5.06 ± 0.15 ± 0.21)%; B(Ds+ → K̄0K+) = (2.95 ± 0.11 ± 0.09)%; B(Ds+ → ηπ+) = (1.82 ± 0.14 ± 0.07)%; where the first and second uncertainties are statistical and systematic, respectively. The branching fractions of leptonic decays are measured to be B(Ds..

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University of Melbourne Researchers

Martin Sevior Author

Grants

Awarded by Japan Society for the Promotion of Science

Funding Acknowledgements

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, the National Institute of Informatics, and the PNNL/EMSL computing group for valuable computing and SINET4 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 and the Australian Department of Industry, Innovation, Science and Research; Austrian Science Fund under Grant No. P 22742-N16; the National Natural Science Foundation of China under contract No. 10575109, 10775142, 10875115 and 10825524; the Ministry of Education, Youth and Sports of the Czech Republic under contract No. MSM0021620859; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; The BK21 and WCU program of the Ministry Education Science and Technology, National Research Foundation of Korea Grant No. 2010-0021174, 2011-0029457, 2012-0008143, 2012R1A1A2008330, BRL program under NRF Grant No. KRF-2011-0020333, and GSDC of the Korea Institute of Science and Technology Information; 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 Federal Agency for Atomic Energy; the Slovenian Research Agency; the Basque Foundation for Science (IKERBASQUE) and the UPV/EHU under program UFI 11/55; the Swiss National Science Foundation; the National Science Council and the Ministry of Education of Taiwan; and the U.S. Department of Energy and the National Science Foundation. This work is supported by a Grant-in-Aid from MEXT for Science Research in a Priority Area ("New Development of Flavor Physics"), and from JSPS for Creative Scientific Research ("Evolution of Tau-lepton Physics").