Reanalysis of charmed--D-meson branching fractions

Journal Article · Sun Jan 10 23:00:00 EST 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.89· OSTI ID:5475534

Adler, J; Becker, J J; Blaylock, G T; Bolton, T; Brown, J S; Bunnell, K O; Burnett, T H; Cassell, R E; Coffman, D; Cook, V

We report a revised determination of charmed--D-meson absolute branching fractions based on complete reconstruction of DD-bar events at the psi(3770). Two backgrounds, Cabibbo-suppressed and multi-..pi../sup 0/D decays, are addressed in detail. The first measurement of the decay D/sup 0/..-->..K/sup -/..pi../sup +/..pi../sup 0/..pi../sup 0/ establishes the sensitivity to hitherto unobserved multi-..pi../sup 0/ modes. Removal of both backgrounds reduces the values of our previously reported branching fractions by (21--24)% leaving their ratios largely unchanged. The new values are unable to account fully for a reported deficit in charm production in B-meson decay.

• Research Organization: California Institute of Technology, Pasadena, California 91125
• OSTI ID: 5475534
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 60:2; ISSN PRLTA
• 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
CHARMONIUM
D MESONS
DATA
DECAY
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
HADRONIC PARTICLE DECAY
HADRONS
INFORMATION
KAONS
MESONS
MONTE CARLO METHOD
NUMERICAL DATA
PARTICLE DECAY
PIONS
PSEUDOSCALAR MESONS
PSI-3770 MESONS
QUARKONIUM
STRANGE MESONS
STRANGE PARTICLES
VECTOR MESONS