Nucleus-nucleus collisions at a mean E=20 GeV/nucleon

Conference · Sat Mar 31 23:00:00 EST 1979 · AIP (Am. Inst. Phys.) Conf. Proc.; (United States)

OSTI ID:6249341

Freier, P S; Jake, C Waddington

Four hundred interactions of cosmic ray nuclei of Z> or =8 in nuclear emulsion have been studied. The nuclei have E>7.5 Gev/n and a mean energy of 21 GeV/nucleon. The mean meson multiplicity is 11.9 for these nucleus-emulsion collisions compared to 6.0 for proton-emulsion interactions at 22.5 GeV. The angular distributions of emitted particles show some interesting effects. There is a statistically significant excess of mesons emitted in close pairs and groups with separation angles <5 /sup 0/. One to two percent of the interactions also show meson emission in ''fans'' or ''jets.''

• Research Organization: University of Minnesota, Minneapolis, Minnesota 55455
• OSTI ID: 6249341
• Report Number(s): CONF-7810116-
• Journal Information: AIP (Am. Inst. Phys.) Conf. Proc.; (United States), Journal Name: AIP (Am. Inst. Phys.) Conf. Proc.; (United States) Vol. 49; ISSN APCPC
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Strong Interactions &amp; Baryon &amp; Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ARGON
BARYON-BARYON INTERACTIONS
BOSONS
COSMIC NUCLEI
COSMIC RADIATION
COSMIC RAY DETECTION
DETECTION
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ENERGY SPECTRA
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
IONIZING RADIATIONS
MESONS
MULTIPLICITY
NONMETALS
NUCLEAR EMULSIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON SPECTRA
RADIATION DETECTION
RADIATIONS
RARE GASES
SPECTRA