Isotopically resolved residues from the fragmentation of projectiles with largely different N/Z - the isospin-thermometer method

Abstract : The mean N-over-Z (/Z) ratio of residues produced in the fragmentation of 136Xe (N/Z=1.519), 124Xe (N/Z=1.296) in comparison with 56Fe (N/Z=1.154) is investigated over the full range of Z. The final residues from the 136Xe projectile keep a memory on the initial N/Z. The idea to trace back the excitation energy of the fragment entering evaporation via direct exploration of the N/Z evolution in the evaporation process is investigated and applied to the data. The freeze-out temperature is deduced, which is consistent with the investigations of light and intermediate-mass fragments (IMF) in other experiments.
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Submitted on : Tuesday, March 22, 2005 - 11:09:47 AM
Last modification on : Monday, November 25, 2019 - 2:10:04 PM

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D. Henzlova, L. Audouin, J. Benlliure, A.S. Botvina, A. Boudard, et al.. Isotopically resolved residues from the fragmentation of projectiles with largely different N/Z - the isospin-thermometer method. 18th Nuclear Physics Division Conference of the EPS Phase transitions in strongly interacting matter, Aug 2004, Prague, Czech Republic. pp.110-113, ⟨10.1016/j.nuclphysa.2004.12.016⟩. ⟨in2p3-00023923⟩

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