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American Physical Society, Physical Review Letters, 8(66), p. 1011-1014

DOI: 10.1103/physrevlett.66.1011

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Measurement of the hadronic structure of semileptonicD0andD+decays

Journal article published in 1991 by Z. Bai, T. Bolton, J. S. Brown, K. O. Bunnell, M. Burchell ORCID, T. H. Burnett, R. E. Cassell, D. Coffman, V. Cook, D. H. Coward, F. DeJongh, D. E. Dorfan, J. Drinkard, G. P. Dubois, G. Eigen and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Absolute branching fractions for the Dl3 and Dl4 decays D+-->K¯ 0e+nue, D+-->K¯ 0mu+numu, D+-->K¯ *0e+nue, and D0-->K*-e+nue are determined using completely reconstructed DD¯ events at the psi(3770). Reconstructed D0-->K-e+nue decays are used to determine the pole mass of the f4(q2) form factor. Resonant K* production dominates the process D-->Kpienu the K* polarization is measured. Limits on several Cabibbo-suppressed channels are evaluated. A global fit imposing isospin symmetry is performed to the measured exclusive and inclusive semileptonic D0 and D+ branching fractions to obtain an improved set of branching fractions.