Open and hidden charm muoproduction. [209 GeV]

Conference · Mon Sep 01 04:00:00 EDT 1980

OSTI ID:5001744

Clark, A R; Johnson, K J; Kerth, L T

New results are presented on open and hidden charm and bottom production by 209-GeV muons interacting in a magnetized steel calorimeter. The upper limit on the production of T states by muons is sigma(..mu..N ..-->.. ..mu..UPSILONX)B(UPSILON ..-->.. ..mu mu..) < 22 x 10/sup -39/ cm/sup 2/ (90% confidence level). The distributions of elastically produced psi's are consistent with s-channel helicity conservation (SCHC) and disagree with psi dominance. From analysis of dimuon final states the cross section for diffractive charm muoproduction is 6.9/sub -1.4/sup +1.9/ nb. The structure function F/sub 2/(c anti c) for diffractive charmed-quark pair production is presented. 5 figures, 2 tables.

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.; Fermi National Accelerator Lab., Batavia, IL (USA); Princeton Univ., NJ (USA). Joseph Henry Labs.
• DOE Contract Number: W-7405-ENG-48; AC02-76CH03000; AC02-76ER03072
• OSTI ID: 5001744
• Report Number(s): LBL-11561; FERMILAB-CONF-80/84-exp; COO-3072-116; CONF-800724-40
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Electromagnetic Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARM PARTICLES
CROSS SECTIONS
DATA
DIFFRACTION MODELS
DRIFT CHAMBERS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FUNCTIONS
GEV RANGE
GEV RANGE 100-1000
HADRONS
INFORMATION
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LIMITING VALUES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON RESONANCES
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
MUON-NUCLEON INTERACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
PROPORTIONAL COUNTERS
PSI RESONANCES
RADIATION DETECTORS
RESONANCE PARTICLES
SHOWER COUNTERS
STRUCTURE FUNCTIONS
UPSILON RESONANCES
VECTOR MESONS