Direct measurement of the decays of charmed D mesons

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5678501

Blaylock, G T

Charmed D mesons produced in the decay of the psi(3770) are observed by the Mark III detector at SPEAR. A new technique is applied to these data to derive D branching fractions which do not rely on the measurement of D production cross sections. Measurements are presented for three decay modes of the D/sup 0/ (K/sup -/..pi../sup +/, K/sup -/..pi../sup -/..pi../sup +/..pi../sup +/ and K/sup -/..pi../sup +/..pi../sup 0/) and four decay modes of the D/sup +/ (K/sup -/..pi../sup +/..pi../sup +/, K/sup -/..pi../sup +/..pi../sup +/..pi../sup 0/, K/sup 0//sub S/..pi../sup +/ and K/sup 0//sub S/..pi../sup +/..pi../sup 0/). The resulting branching fractions are significantly larger than previous measurements.

• Research Organization: Illinois Univ., Urbana (USA). Dept. of Physics
• DOE Contract Number: AC02-76ER01195
• OSTI ID: 5678501
• Report Number(s): COO-1195-502; ON: DE86012206
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
D MESONS
DALITZ PLOT
DATA
DECAY
DIAGRAMS
DRIFT CHAMBERS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
HADRONS
INFORMATION
KAONS
MASS SPECTRA
MEASURING INSTRUMENTS
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
NUMERICAL DATA
PARTICLE DECAY
PIONS
PROPORTIONAL COUNTERS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
SCATTERPLOTS
SHOWER COUNTERS
SPEAR
SPECTRA
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
TIME-OF-FLIGHT METHOD
WEAK PARTICLE DECAY