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Measurements of the properties of D-meson decays

Journal Article · · Physical Review D
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  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
+ Show Author Affiliations
We present a study of the decay properties of charmed D mesons produced near the peak of the {psi}" (3770) resonance in e⁺e⁻ 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 Kππ 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⁺ decay into K⁻π⁺π⁺. Using tagged events, we measure the charged particle multiplicity and strange particle content of D decays. A measurement of the D⁺ and D⁰ semileptonic decay fractions indicates that the D{sup +} has a significantly longer lifetime than the D⁰.
Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1070013
Report Number(s):
LBL--10905
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 24; ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS