Hadroproduction of. lambda. /sub c/. -->. pK. pi
Technical Report
·
OSTI ID:6920492
Production of the charmed baryon ..lambda../sub c/ has been observed in n-nucleus collisons at the Proton East area of FNAL. A 5sigma peak was seen in the decay mode ..lambda../sub c//sup /plus// ..-->.. pK/sup /minus//..pi../sup /plus// (and charged congugate). The lifetime was determined to be consistent with the current world average of 0.23 ps, and the cross section for ..lambda../sub c//sup +/ at ..sqrt..s = 33 GeV was measured to be sigma /center dot/ BR = 2.1 +- 1.1 (+-.74)..mu..b/nucleon for 0.028 < x/sub f/ < 0.226. The fraction of ..lambda../sub c//sup +//(..lambda../sub c//sup +/ + ..lambda../sub c//sup /minus/) was estimated to be 78% /plus minus/ 18%. 40 refs.
- Research Organization:
- Illinois Univ., Urbana (USA). Graduate Coll.
- DOE Contract Number:
- AC02-76ER01195
- OSTI ID:
- 6920492
- Report Number(s):
- DOE/ER/01195-T9; ON: DE88014946
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
CHARM PARTICLES
CHERENKOV COUNTERS
CROSS SECTIONS
DATA ACQUISITION SYSTEMS
DATA ANALYSIS
DECAY
DETECTION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LAMBDA C PLUS
LIFETIME
MASS SPECTRA
MEASURING INSTRUMENTS
MONTE CARLO METHOD
PARTICLE DECAY
PARTICLE PRODUCTION
RADIATION DETECTORS
SPECTRA
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
CHARM PARTICLES
CHERENKOV COUNTERS
CROSS SECTIONS
DATA ACQUISITION SYSTEMS
DATA ANALYSIS
DECAY
DETECTION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LAMBDA C PLUS
LIFETIME
MASS SPECTRA
MEASURING INSTRUMENTS
MONTE CARLO METHOD
PARTICLE DECAY
PARTICLE PRODUCTION
RADIATION DETECTORS
SPECTRA