Transverse velocity scaling in $^{197}$Au+$^{197}$Au fragmentation

Abstract : Invariant transverse-velocity spectra of intermediate-mass fragments were measured with the 4-pi multi-detector system INDRA for collisions of Au on Au at incident energies between 40 and 150 MeV per nucleon. Their scaling properties as a function of incident energy and atomic number Z are used to distinguish and characterize the emissions in (i) peripheral collisions at the projectile and target rapidities, and in (ii) central and (iii) peripheral collisions near mid-rapidity. The importance of dynamical effects is evident in all three cases and their origin is discussed.
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Submitted on : Tuesday, February 25, 2003 - 2:35:30 PM
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J. Lukasik, S. Hudan, F. Lavaud, K. Turzo, G. Auger, et al.. Transverse velocity scaling in $^{197}$Au+$^{197}$Au fragmentation. Physical Review C, American Physical Society, 2002, 66, pp.064606-1-064606-4. ⟨10.1103/PhysRevC.66.064606⟩. ⟨in2p3-00013647⟩

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