Measurement of the D/sup */ hadronic cross section at 200 GeV/c

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6954403

Mooney, P J

The cross section for charged D/sup */ production with a 200 GeV/c ..pi../sup -/ beam incident on a beryllium target was measured with a two-arm spectrometer. The strategy was to trigger on the muon from the semileptonic decay of a charm particle in one arm while reconstructing the mass of the associated charm particle in the other arm. Of the 1.9 million recorded events 382 thousand contained reconstructed triggering muons. Using the mass difference technique often employed in D/sup */ studies, a signal of 32 +/- 11 charged D/sup */'s was isolated. This corresponds to a charged D/sup */ production cross section of 212 +/- 73 ..mu..b per Be nucleus of 24 +/- 8 ..mu..b/nucleon if the cross section in both the D/sup *//sup +/ and /sup *//sup -/ charge modes. A signal of 32 +/- 11 charged D/sup */'s implies 36 +/- 12% of the 382 thousand events with reconstructed muons contained charm.

• Research Organization: Notre Dame Univ., IN (USA)
• OSTI ID: 6954403
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALKALINE EARTH METALS
BERYLLIUM
CHARGED-PARTICLE REACTIONS
CHARM PARTICLES
CHARMED MESON RESONANCES
CROSS SECTIONS
D RESONANCES
D-2007 RESONANCES
DATA
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
HADRONS
INFORMATION
MESON REACTIONS
MESON RESONANCES
METALS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
RESONANCE PARTICLES