https://scholars.lib.ntu.edu.tw/handle/123456789/46507
標題: | Measurement of the branching fraction and charge asymmetry of the decay B+→D+D? 0 and search for B0→D0D? 0 | 作者: | Hou, W. S. and others WEI-SHU HOU KAI-FENG CHEN |
公開日期: | 2008 | 卷: | 77 | 期: | 9 | 來源出版物: | Physical Review D - Particles, Fields, Gravitation and Cosmology | 摘要: | We report an improved measurement of the B+→D+D̄0 and B0→D0D̄0 decays based on 657×106 BB̄ events collected with the Belle detector at KEKB. We measure the branching fraction and charge asymmetry for the B+→D+D̄0 decay: B(B+→D+D̄0)=(3. 85±0.31±0.38)×10-4 and ACP(B+→D+D̄0)=0. 00±0.08±0.02, where the first error is statistical and the second is systematic. We also set the upper limit for the B0→D0D̄0 decay: B(B0→D0D̄0)<0.43×10-4 at 90% CL. © 2008 The American Physical Society. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/236198 https://www.scopus.com/inward/record.uri?eid=2-s2.0-43449123641&doi=10.1103%2fPhysRevD.77.091101&partnerID=40&md5=abb9182c38ac825f929cd210114d07ae |
ISSN: | 15507998 | DOI: | 10.1103/PhysRevD.77.091101 |
顯示於: | 天文物理研究所 |
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