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

Henzlova, D.; Audouin, L.; Benlliure, J.; Botvina, As; Boudard, A.; Casarejos, E.; Ducret, Je; Enqvist, T.; Got, Lt; Heinz, A.; Henzl, V.; Junghans, A.; Jurado, B.; Kelic, A.; Krasa, A.; Kurtukian, T.; Leray, S.; Napolitani, P.; Ordonez, Mf; Pereira, J.; Pleskac, R.; Rejmund, F.; Ricciardi, Mv; Schmidt, Kh; Schmitt, C.; Stephan, C.; Villagrasa, C.; Volant, C.; Wagner, A.; Yordanov, O.

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

Henzlova, D.; Audouin, L.; Benlliure, J.; Botvina, A.; Boudard, A.; Casarejos, E.; Ducret, J.; Enqvist, T.; Got, L.; Heinz, A.; Henzl, V.; Junghans, A.; Jurado, B.; Kelic, A.; Krasa, A.; Kurtukian, T.; Leray, S.; Napolitani, P.; Ordonez, M.; Pereira, J.; Pleskac, R.; Rejmund, F.; Ricciardi, M.; Schmidt, K.; Schmitt, C.; Stephan, C.; Villagrasa, C.; Volant, C.; Wagner, A.; Yordanov, O.

The mean N-over-Z (Z) ratio of residues produced in the fragmentation of Xe-136 (N/Z = 1.519), Xe-124 (N/Z = 1.296) in comparison with Fe-56 (N/Z = 1.154) is investigated over the full range of Z. The final residues from the Xe-136 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.

Nuclear Physics A 749(2005), 110c-113c
ISSN: 0375-9474

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