Measurement of the branching fraction of B → D ( * ) π ℓ ν at Belle using hadronic tagging in fully reconstructed events

Citation data:

Physical Review D, ISSN: 2470-0010, Vol: 98, Issue: 1

Publication Year:
2018
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arXiv Id:
1803.06444
DOI:
10.1103/physrevd.98.012005
Repository URL:
https://digitalcommons.kennesaw.edu/facpubs/4181
Author(s):
A. Vossen; I. Adachi; K. Adamczyk; H. Aihara; S. Al Said; D. M. Asner; V. Aulchenko; T. Aushev; R. Ayad; I. Badhrees; V. Bansal; C. Beleño; B. Bhuyan; T. Bilka; J. Biswal; A. Bondar; A. Bozek; T. E. Browder; D. Červenkov; A. Chen; B. G. Cheon; K. Chilikin; K. Cho; S.-K. Choi; Y. Choi; S. Choudhury; D. Cinabro; S. Cunliffe; N. Dash; S. Di Carlo; Z. Doležal; S. Eidelman; J. E. Fast; T. Ferber; B. G. Fulsom; R. Garg; V. Gaur; N. Gabyshev; A. Garmash; M. Gelb; P. Goldenzweig; E. Guido; T. Hara; O. Hartbrich; K. Hayasaka; H. Hayashii; M. T. Hedges; S. Hirose; W.-S. Hou; K. Inami; A. Ishikawa; R. Itoh; M. Iwasaki; Y. Iwasaki; W. W. Jacobs; I. Jaegle; S. Jia; Y. Jin; T. Julius; D. Y. Kim; H. J. Kim; J. B. Kim; K. T. Kim; S. H. Kim; K. Kinoshita; S. Korpar; D. Kotchetkov; P. Križan; R. Kroeger; P. Krokovny; T. Kuhr; R. Kulasiri; T. Kumita; Y.-J. Kwon; J. S. Lange; I. S. Lee; S. C. Lee; L. K. Li; Y. Li; L. Li Gioi; J. Libby; D. Liventsev; M. Lubej; M. Masuda; M. Merola; K. Miyabayashi; H. Miyata; R. Mizuk; H. K. Moon; R. Mussa; E. Nakano; M. Nakao; T. Nanut; K. J. Nath; M. Nayak; M. Niiyama; S. Nishida; H. Ono; P. Pakhlov; G. Pakhlova; B. Pal; S. Pardi; H. Park; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; V. Popov; M. Ritter; A. Rostomyan; G. Russo; D. Sahoo; Y. Sakai; M. Salehi; S. Sandilya; L. Santelj; T. Sanuki; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; A. J. Schwartz; Y. Seino; K. Senyo; V. Shebalin; C. P. Shen; T.-A. Shibata; N. Shimizu; J.-G. Shiu; F. Simon; E. Solovieva; M. Starič; J. F. Strube; M. Sumihama; T. Sumiyoshi; M. Takizawa; U. Tamponi; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Usov; C. Van Hulse; G. Varner; K. E. Varvell; A. Vinokurova; V. Vorobyev; B. Wang; C. H. Wang; M.-Z. Wang; P. Wang; M. Watanabe; E. Widmann; E. Won; H. Ye; Y. Yusa; S. Zakharov; Z. P. Zhang; V. Zhilich; V. Zhukova; V. Zhulanov; A. Zupanc Show More Hide
Publisher(s):
American Physical Society (APS)
Tags:
Physics and Astronomy; Physics
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article description
We report a measurement of the branching fractions of the decays B→D(∗)πν. The analysis uses 772×106 BB. pairs produced in e+e-→(4S) data recorded by the Belle experiment at the KEKB asymmetric-energy e+e- collider. The tagging B meson in the decay is fully reconstructed in a hadronic decay mode. On the signal side, we reconstruct the decay B→D(∗)πν(=e,μ). The measured branching fractions are B(B+→D-π++ν)=[4.55±0.27 (stat.)±0.39 (syst.)]×10-3, B(B0→D.0π-+ν)=[4.05±0.36 (stat.)±0.41 (syst.)]×10-3, B(B+→D∗-π++ν)=[6.03±0.43 (stat.)±0.38 (syst.)]×10-3, and B(B0→D.∗0π-+ν)=[6.46±0.53 (stat.)±0.52 (syst.)]×10-3. These are in good agreement with the current world-average values.