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Flavor-Specific Inclusive B Decays to Charm

Coan , T. E. and Barish, B. and Chadha, M. and Chan, S. and Eigen, G. and Miller, J. S. and O'Grady, C. and Schmidtler, M. and Urheim, J. and Würthwein, F. and Weinstein, Alan J. (1998) Flavor-Specific Inclusive B Decays to Charm. Physical Review Letters, 80 (6). pp. 1150-1155. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:20120117-151344023

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Abstract

We have measured the branching fractions for B → D̅ X, B → DX, and B → D̅ Xℓ^+ν. From these results and some previously measured branching fractions, we obtain B(b → cc̅ s) = (21.9±3.7)%, B(b → sg)<6.8% at 90% C.L., and B(D^0 → K^-π^+) = (3.69±0.20)%. Implications for the “B semileptonic decay problem” (measured branching fraction being below theoretical expectations) are discussed. With the increase in the value of B(b → cc̅ s) due to B → DX, the discrepancy is no longer statistically compelling.


Item Type:Article
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URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.80.1150DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevLett.80.1150PublisherUNSPECIFIED
http://prl.aps.org/abstract/PRL/v80/i6/p1150_1PublisherUNSPECIFIED
Additional Information:© 1998 The American Physical Society. Received 23 October 1997; published in the issue dated 9 February 1998. We thank Isard Dunietz for informative conversations. We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. This work was supported by the National Science Foundation, the U.S. Department of Energy, the Heisenberg Foundation, the Alexander von Humboldt Stiftung, Research Corporation, the Natural Sciences and Engineering Research Council of Canada, the A. P. Sloan Foundation, the Swiss National Science Foundation, and the Yonsei University Faculty Research Fund.
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NSFUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Heisenberg FoundationUNSPECIFIED
Alexander von Humboldt StiftungUNSPECIFIED
Research CorporationUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
A.P. Sloan FoundationUNSPECIFIED
Swiss National Science FoundationUNSPECIFIED
Yonsei University Faculty Research FundUNSPECIFIED
Classification Code:PACS: 13.25.Hw, 13.20.He, 14.40.Nd
Record Number:CaltechAUTHORS:20120117-151344023
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120117-151344023
Official Citation:Flavor-Specific Inclusive B Decays to Charm T. E. Coan et al. ((CLEO Collaboration)) pp. 1150-1155
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28822
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:17 Jan 2012 23:38
Last Modified:22 Jul 2013 23:16

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