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Multifragmentation induced by relativistic [alpha] projectiles

Journal Article · · Physical Review Letters; (United States)
; ;  [1]; ; ; ;  [2]; ; ;  [3];  [4];  [5];  [6]
  1. Institut fuer Kernphysik, Technische Hochschule Darmstadt, 64289 Darmstadt (Germany)
  2. Joint Institute for Nuclear Research, Dubna, Head Post Office, P.O. Box 79, Moscow (Russian Federation)
  3. Kurchatov Institute, P.O. Box 123 182, Moscow (Russian Federation)
  4. Henryk Niewodniczanski Institute of Nuclear Physics, 31-342 Cracow (Poland)
  5. Institut fuer Kern- und Hadronenphysik, Forschungszentrum Rossendorf, 01314 Dresden (Germany)
  6. University of Iowa, Iowa City, Iowa 52242 (United States)
Multifragmentation of the system [alpha]+[sup 197]Au has been studied at incident energies of 1 and 3.6 GeV/nucleon with the new 4[pi] setup, FASA. Mass, energy, and velocity of a few fragments are measured with high precision using time-of-flight telescopes, while for the other fragments, global multiplicity information is obtained from 55 CsI(Tl) detectors covering the main part of 4[pi]. Very high mean IMF (intermediate mass fragment) multiplicities of [l angle][ital M][r angle][sub IMF]=5.1[plus minus]0.8 are observed at the higher incident energy. Compared to the lower incident energy, they increase by 40%, indicating an increasing energy deposition with increasing incident energy.
OSTI ID:
5016868
Journal Information:
Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:11; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English