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Measurements of B→D_s^+X decays

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 Würthwein, F. and Weinstein, Alan J. (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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Abstract

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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.53.4734DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevD.53.4734PublisherUNSPECIFIED
http://prd.aps.org/abstract/PRD/v53/i9/p4734_1PublisherUNSPECIFIED
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.
Funders:
Funding AgencyGrant Number
Heisenberg FoundationUNSPECIFIED
A. P. Sloan FoundationUNSPECIFIED
Alexander von Humboldt StiftungUNSPECIFIED
NSFUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Classification Code:PACS: 13.25.Hw
Record Number:CaltechAUTHORS:20120208-095745961
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120208-095745961
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.
ID Code:29193
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:08 Feb 2012 18:45
Last Modified:22 Jul 2013 23:16

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