We present measurements of the inclusive branching fractions for the decays D+→Xe+νe and D0→Xe+νe, using 281pb-1 of data collected on the ψ(3770) resonance with the CLEO-c detector. We find B(D0→Xe+νe)=(6. 46±0.17±0.13)% and B(D+→Xe+νe)=(16.13±0. 20±0.33)%. Using the known D meson lifetimes, we obtain the ratio ΓD+sl/ΓD0sl=0.985±0.028±0.015, confirming isospin invariance at the level of 3%. The positron momentum spectra from D+ and D0 have consistent shapes. © 2006 The American Physical Society.
CITATION STYLE
Adam, N. E., Alexander, J. P., Berkelman, K., Cassel, D. G., Duboscq, J. E., Ecklund, K. M., … Rosner, J. L. (2006). Absolute branching fraction measurements for D+ and D0 inclusive semileptonic decays. Physical Review Letters, 97(25). https://doi.org/10.1103/PhysRevLett.97.251801
Mendeley helps you to discover research relevant for your work.