Extremely high multiplicities in high-energy nucleus-nucleus collisions

Details Extremely high multiplicities in high-energy nucleus-nucleus collisions Extremely high multiplicities in high-energy nucleus-nucleus collisions

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phrvl..50.2062b&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 50, June 27, 1983, p. 2062-2065. Research supported by the Japan Institute for Co

Physics

209

Energetic Particles, Heavy Nuclei, High Energy Interactions, Nuclear Interactions, Particle Collisions, Balloon-Borne Instruments, Charged Particles, Elementary Particle Interactions, Cosmic-Ray Interactions

Scientific paper

Two unusually-high-multiplicity interactions of high-energy heavy nuclei were observed in a balloon-borne emulsion chamber: an Si(+)AgBr event (4 TeV/nucleon) and a Ca(+)C event (100 TeV/nucleon), with 1015 and 760 charged particles, respectively. The multiplicities and rapidity distributions favor the multichain model but not the wounded-nucleon superposition model. The high average transverse momentum (550-700 MeV/c) and the rapid fluctuations of the events are not readily understood in terms of any superposition models.

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