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K-shell ionization probability in energetic nearly symmetric heavy-ion collisions

Journal Article · · Phys. Rev., A; (United States)
Impact-parameter-dependent K-x-ray emission probabilities for the projectile and target atoms have been measured in 35-MeV Cl on Cl, Cl on Ti, and Cl on Ni collisions. The sum of projectile plus target K-shell ionization probability is taken as a measure of the total 2psigma ionization probability. The 2p..pi..-2psigma rotational coupling model is in clear disagreement with the present results. On the other hand, the sum of probabilities is reproduced both in shape and absolute magnitude by the statistical model for inner-shell ionization. The K-shell ionization probability of the higher-Z collision partner is well described by this model including the 2psigma-1ssigma vacancy-sharing probability calculated as a function of the impact parameter.
Research Organization:
Nuclear Physics Department, The Weizmann Institute of Science, Rehovot, Israel
OSTI ID:
6587578
Journal Information:
Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 18:6; ISSN PLRAA
Country of Publication:
United States
Language:
English