1. Measurements of the properties ofD-meson decays
- Author
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J. Strait, G. H. Trilling, J. A. Kadyk, Martin Breidenbach, G. Hanson, William Carithers, M. E. Nelson, R. R. Larsen, R. A. Vidal, A. M. Boyarski, A. J. Lankford, D. L. Burke, E. N. Vella, M. E. B. Franklin, C. A. Blocker, V. Luth, W. Chinowsky, G. S. Abrams, M. W. Coles, G. Gidal, J. Dorenbosch, G. J. Feldman, Rafe Schindler, P. Jenni, R. E. Millikan, M. S. Alam, J. L. Siegrist, R. J. Hollebeek, Burton Richter, T. Himel, G. Goldhaber, A. Blondel, Roy F Schwitters, J. F. Patrick, W. E. Dieterle, H. Zaccone, I. Videau, D. G. Hitlin, C. Y. Pang, J. M. Weiss, M. Tonutti, M. W. Eaton, D. L. Scharre, S. Cooper, J. A. Jaros, Kenneth G. Hayes, A. Roussarie, H. Taureg, J. Dorfan, J. B. Dillion, M. L. Perl, A. D. Johnson, and Walter R. Innes
- Subjects
Semileptonic decay ,Physics ,Particle decay ,education.field_of_study ,Particle physics ,Pion ,Meson ,Branching fraction ,D meson ,Population ,Dalitz plot ,education - Abstract
We present a study of the decay properties of charmed D mesons produced near the peak of the {psi}" (3770) resonance in e{sup +}e{sup -} annihilation. Branching fractions for nine Cabibbo-favored and three Cabibbo-suppressed decay modes are presented along with upper limits on one additional Cabibbo-favored and four additional Cabibbo-suppressed decay modes. A study of K{pi}{pi} decay mode Dalitz plots reveals a large quasi-two-body pseudoscalar-vector component for the D{sup 0} decays and an apparent nonuniform population an the Dalitz plot for the D{sup +} decay into K{sup -}{pi}{sup +}{pi}{sup +}. Using tagged events, we measure the charged particle multiplicity and strange particle content of D decays. A measurement of the D{sup +} and D{sup 0} semileptonic decay fractions indicates that the D{sup +} has a significantly longer lifetime than the D{sup 0}.
- Published
- 1981
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