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Title:
Excitation and multiple dissociation of 12C, 14N, and 16O projectiles in peripheral collisions at 32.5 MeV/nucleon
Authors:
Pouliot, J.; Chan, Y.; Digregorio, D. E.; Harmon, B. A.; Knop, R.; Moisan, C.; Roy, R.; Stokstad, R. G.
Affiliation:
Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, California 94720
Publication:
Physical Review C (Nuclear Physics), Volume 43, Issue 2, February 1991, pp.735-744 (PhRvC Homepage)
Publication Date:
02/1991
Origin:
AIP; APS ttp://www.aip.org ttp://www.aps.org
Abstract Copyright:
(c) 1991: The American Physical Society
DOI:
10.1103/PhysRevC.43.735
Bibliographic Code:
1991PhRvC..43..735P

Abstract

Cross sections for the multiple breakup of 16O, 14N, and 12C projectiles scattered by an Au target were measured with an array of 34 phoswich detectors. The dissociation of the projectiles into as many as five charged particles has been observed. The yields of different exit channels correlate approximately with the threshold energy for separation of the projectile into the observed fragments. The excitation spectrum of the primary projectile-like nucleus was reconstructed from the measured positions and kinetic energies of the individual fragments. The energy sharing between projectile and target is consistent with a fast excitation mechanism in which differential increases in projectile excitation energy appear to be accompanied by comparable increases in target excitation. Calculations of the yields based on a sequence of binary decays are presented.
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