Results on charmed baryons and mesons from the SLAC-LBL Mark II detector at SPEAR

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:5454960

Goldhaber, G

Results from the SLAC-LBL Mark II detector at SPEAR are presented. A few of the very recent results are emphasized, namely: (1) The observation of charmed baryons; a signal ..lambda../sub c/ ..-->.. pK/sup -/..pi../sup +/ and the charge conjugate of that channel, anti ..lambda../sub c/ ..-->.. anti pK/sup +/..pi../sup -/ are now established. Some evidence also exists for other channels, K/sub S/p, ..lambda pi../sup +/, etc. (2) The study of charmed mesons. Here some new hadronic decay modes are mentioned, and the Cabibbo-suppressed decay modes. (3) The D/sup +/ - D/sup 0/ lifetime ratio; evidence is presented that the D/sup +/ has a longer lifetime than the D/sup 0/ by about a factor of three, although the statistical error is fairly large on this number.

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5454960
• Report Number(s): LBL-10428; CONF-7910103-5
• 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
ANNIHILATION
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED BARYON RESONANCES
CHARMED MESON RESONANCES
D RESONANCES
DATA
DATA FORMS
DIAGRAMS
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 01-10
GRAPHS
HADRONS
HYPERONS
INFORMATION
INTERACTIONS
ISOLATED VALUES
LAMBDA PARTICLES
LEPTON-LEPTON INTERACTIONS
LIFETIME
MESON RESONANCES
MESONS
MONTE CARLO METHOD
NUMERICAL DATA
PARTICLE INTERACTIONS
POSTULATED PARTICLES
RESONANCE PARTICLES
STRANGE PARTICLES