skip to main content

Title: 4. pi. physics. [/sup 40/Ar + KCl, 0. 4 to 1. 8 GeV/A]

Exclusive ..pi../sup -/ and charged-particle production in collisions of /sup 40/Ar on KCl are studied at incident energies from 0.4 to 1.8 GeV/A. The correlation between the ..pi../sup -/ and the total charged particle multiplicity confines the reaction along a narrow ridge with no exotic islands of pion production. For high multiplicities the system reaches the total disintegration of target and projectile into singly charged fragments and pions. Every 200 MeV/A datum was taken with a central and inelastic trigger. For central collisions the mean ..pi../sup -/ multiplicity increases linearly with the bombarding energy with no marked discontinuities due to the ..delta..(3,3) resonance. At 1.8 GeV/A evidence for nonthermal ..pi../sup -/ production in central collisions is found. The total c.m. energy in ..pi../sup -/ shows linear dependence on the ..pi../sup -/ multiplicity with a slope of epsilon = 300 MeV/..pi../sup -/. Strange particle production in the central collision of 1.8 GeV/A Ar on KCl is seen. 8 figures.
Authors:
Publication Date:
OSTI Identifier:
5293992
Report Number(s):
LBL-10721; CONF-800329-3
TRN: 80-011883
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 1. workshop on nuclear dynamics, Tahoe City, CA, USA, 17 Mar 1980
Research Org:
Gesellschaft fuer Schwerionenforschung m.b.H., Darmstadt (Germany, F.R.); California Univ., Berkeley (USA). Lawrence Berkeley Lab.
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ARGON 40 REACTIONS; MULTIPLE PRODUCTION; CHARGED PARTICLES; PIONS MINUS; POTASSIUM CHLORIDES; CORRELATIONS; ENERGY DEPENDENCE; EXPERIMENTAL DATA; GEV RANGE 10-100; ISOLATED VALUES; MULTIPLICITY; QUARK MODEL; RELATIVISTIC RANGE; SCATTERPLOTS; ALKALI METAL COMPOUNDS; BOSONS; CHARGED-PARTICLE REACTIONS; CHLORIDES; CHLORINE COMPOUNDS; COMPOSITE MODELS; DATA; DATA FORMS; DIAGRAMS; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; HALIDES; HALOGEN COMPOUNDS; HEAVY ION REACTIONS; INFORMATION; MATHEMATICAL MODELS; MESONS; NUCLEAR REACTIONS; NUMERICAL DATA; PARTICLE MODELS; PARTICLE PRODUCTION; PIONS; POTASSIUM COMPOUNDS; PSEUDOSCALAR MESONS 651525* -- Nuclear Properties & Reactions, A=39-58, Experimental-- Nuclear Reactions & Scattering-- (-1987)