Isotopically resolved residues from the fragmentation of projectiles with largely different N/Z – the isospin-thermometer method
✍ Scribed by D. Henzlova; L. Audouin; J. Benlliure; A.S. Botvina; A. Boudard; E. Casarejos; J.E. Ducret; T. Enqvist; L.T. Got; A. Heinz; V. Henzl; A. Junghans; B. Jurado; A. Kelic; A. Krasa; T. Kurtukian; S. Leray; P. Napolitani; M.F. Ordonez; J. Pereira; R. Pleskac; F. Rejmund; M.V. Ricciardi; K.-H. Schmidt; Ch. Schmitt; C. Stephan; C. Villagrasa; C. Volant; A. Wagner; O. Yordanov
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 255 KB
- Volume
- 749
- Category
- Article
- ISSN
- 0375-9474
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✦ Synopsis
The mean N-over-Z (/Z) ratio of residues produced in the fragmentation of 136 Xe (N/Z=1.519), 124 Xe (N/Z=1.296) in comparison with 56 Fe (N/Z=1.154) is investigated over the full range of Z. The final residues from the 136 Xe 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.