Gibaut, D. and Barish, B. and Chadha, M. and Chan, S. and Cowen, D. F. and Eigen, G. and Miller, J. S. and O'Grady, C. and Urheim, J. and Weinstein, A. J. and Würthwein, F. (1996) Measurements of B→D_s^+X decays. Physical Review D, 53 (9). pp. 4734-4746. ISSN 0556-2821 http://resolver.caltech.edu/CaltechAUTHORS:20120208-095745961
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This paper describes new measurements from CLEO of the inclusive B→D_s^+X branching fraction as well as the B^+→D_s^((*)+)D^((*)0) and B^0→D_s^((*)+)D^((*)-) branching fractions. The inclusive branching fraction is B(B→D_s^+X)=(12.11±0.39±0.88±1.38)% where the first error is statistical, the second is the systematic error, and the third is the error due to the uncertainty in the D_s^+→φπ^+ branching fraction. The branching fractions for the B→D_s^((*)+)D^(*) modes are found to be between 0.9% and 2.4% and are significantly more precise than previous measurements. The sum of the B→D_s^((*)+)D^(*) branching fractions is consistent with the results of fits to the inclusive D_s^+ momentum spectrum. Factorization is used to arrive at a value for f_D_s, the D_s^+ decay constant.
|Additional Information:||© 1996 The American Physical Society. Received 19 October 1995; published in the issue dated 1 May 1996. We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. J.P.A., J.R.P., and I.P.J.S. thank the NYI program of the NSF, G.E. thanks the Heisenberg Foundation, K.K.G., M.S., H.N.N., T.S., and H.Y. thank the OJI program of DOE, J.R.P thanks the A.P. Sloan Foundation, and A.W. thanks the Alexander von Humboldt Stiftung for support. This work was supported by the National Science Foundation, the U.S. Department of Energy, and the Natural Sciences and Engineering Research Council of Canada.|
|Classification Code:||PACS: 13.25.Hw|
|Official Citation:||Measurements of B→Ds+X decays D. Gibaut et al. pp. 4734-4746|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||08 Feb 2012 18:45|
|Last Modified:||26 Dec 2012 14:48|
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