Photoproduction of charmed baryons

Technical Report · Tue Jan 01 04:00:00 EST 1980

DOI:https://doi.org/10.2172/5001752· OSTI ID:5001752

Russell, J. J.

The results of a search for the photoproduction of charmed baryons in the broad-band neutral beam at Fermi National Accelerator Laboratory are reported. The lowest lying charmed baryon ({lambda}/sub c//sup +/) is observed through its decay to p-anti K/sup 0/. The cross section times branching ratio of {gamma} + C --> {lambda}/sub c//sup +/ + X, {gamma} + C --> p + anti K/sup 0/ is measured to be sigma B = 3 nanobarns/nucleon. The total error on this measurement is estimated to be -20% to +40%. The mass of the {lambda}/sub c//sup +/ is found to be 2.284 +- 0.001 GeV/c/sup 2/, in good agreement with the Mark II result from SPEAR. Upper limits (90% confidence level) are set on sigma B for the modes {lambda}/sup 0/π, {lambda}/sup 0/πππ, pKπ.

• Research Organization: Illinois Univ., Urbana (United States). Graduate Coll.
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76ER01195
• OSTI ID: 5001752
• Report Number(s): COO--1195-455
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON RESONANCES
BARYONS
BASIC INTERACTIONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED BARYON RESONANCES
DATA
DATA ACQUISITION
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
HADRONS
HYPERONS
INFORMATION
INTERACTIONS
LAMBDA PARTICLES
MEASURING METHODS
NUMERICAL DATA
PARTICLE PRODUCTION
PHOTOPRODUCTION
POSTULATED PARTICLES
RESONANCE PARTICLES
STRANGE PARTICLES