Absolute branching fraction measurements for D+ and D0 inclusive semileptonic decays
- N. E. Adam,
- J. P. Alexander,
- K. Berkelman,
- D. G. Cassel,
- J. E. Duboscq,
- K. M. Ecklund
- Cornell University,
- University of Florida,
- George Mason University,
- University of Illinois at Urbana-Champaign,
- Indiana University,
- University of Kansas
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90
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10
Abstract
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.
Publication Information
Output type
Research Output:
Contribution to journal
Article
Peer-reviewOriginal language
EnglishArticle number
251801Journal (Volume, Issue Number)
Physical Review Letters (Volume 97, Issue 25)Publication milestones
- Published - 01/12/2006
Publication status
Published - 01/12/2006
ISSN
0031-9007Publication IDs
- Scopus: 33845722692
- WOS: 000243414600011