Published April 1, 1979 | Version v1
Journal article Metadata-only

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

Creators

  • 1. University of Minnesota, Minneapolis, Minnesota 55455

Description

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 0. One to two percent of the interactions also show meson emission in ''fans'' or ''jets.''

Additional details

Publishing Information

Journal Title
AIP (Am. Inst. Phys.) Conf. Proc.
Journal Volume
49
Series
AIP (Am. Inst. Phys.) Conf. Proc.
Journal Page Range
87-93

Conference

Title
Bartol conference on cosmic rays and particle physics above 10 TeV.
Dates
16 - 21 Oct 1978.
Place
Newark, DE, USA.

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
10489946
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANGULAR DISTRIBUTION; ARGON; COSMIC RADIATION; COSMIC RAY DETECTION; ENERGY SPECTRA; GEV RANGE 10-100; MESONS; MULTIPLICITY; NUCLEAR EMULSIONS; NUCLEAR REACTIONS; NUCLEI; NUCLEON-NUCLEON INTERACTIONS; PROTON SPECTRA
Descriptors DEC
BARYON-BARYON INTERACTIONS; BOSONS; DISTRIBUTION; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; IONIZING RADIATIONS; NONMETALS; PARTICLE INTERACTIONS; RADIATION DETECTION; RADIATIONS; RARE GASES; SPECTRA

Optional Information

Secondary number(s)
CONF-7810116--.