Inclusive study of 200 GeV/c pi-neon interactions

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1980

OSTI ID:5285484

Band, H R

200 GeV/c pi-neon interactions are studied in the Fermilab 30 inch bubble chamber which was filled with a neon-hydrogen mixture (31 molar % neon). Scan results and measurements of a representative event sample yield proton, gamma and pion multiplicities and single particle spectra. R was measured to be 1.21 +- 0.05 for both pi/sup +/ and pi/sup 0/. Nearly identical to lower energy measurements, R is strongly dependent on the number of observed protons in the event. KNO scaling is observed for the corrected multiplicity distributions. Scaling, however, appears violated if events with a fixed number of protons are considered. Study of the pion single particle spectra show the excess particle production of the neon target over that of hydrogen is largest in the target fragmentation region and nearly constant (1.28 +- 0.02) in the central production region. The dependence of the pion rapidity distribution on the number of protons is consistent with collisions on either one or two nucleons. The s/sup -1/2/ dependence of the p/sub parallel/ spectra is very similar to that seen in hydrogen, with limiting fragmentation reached only for beam energies much greater than 200 GeV/c. The proton momentum distribution is energy independent with the protons carrying proportionally less of the bombarding energy as s increases.

• Research Organization: Duke Univ., Durham, NC (USA)
• OSTI ID: 5285484
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
CHARGED-PARTICLE REACTIONS
CYCLIC ACCELERATORS
ENERGY RANGE
FERMILAB ACCELERATOR
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
MESON REACTIONS
NEON 20 TARGET
NUCLEAR REACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLE RAPIDITY
PION REACTIONS
SCALING LAWS
SYNCHROTRONS
TARGETS