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Isotopic Dependence of the Caloric Curve

Authors :
The ALADIN2000 Collaboration
Trautmann, W.
Adrich, P.
Aumann, T.
Bacri, C. O.
Barczyk, T.
Bassini, R.
Bianchin, S.
Boiano, C.
Botvina, A. S.
Boudard, A.
Brzychczyk, J.
Chbihi, A.
Cibor, J.
Czech, B.
De Napoli, M.
Ducret, J. -E.
Emling, H.
Frankland, J. D.
Hellstroem, M.
Henzlova, D.
Imme, G.
Iori, I.
Johansson, H.
Kezzar, K.
Lafriakh, A.
Fevre, A. Le
Gentil, E. Le
Leifels, Y.
Luehning, J.
Lukasik, J.
Lynch, W. G.
Lynen, U.
Majka, Z.
Mocko, M.
Mueller, W. F. J.
Mykulyak, A.
Orth, H.
Otte, A. N.
Palit, R.
Pawlowski, P.
Pullia, A.
Raciti, G.
Rapisarda, E.
Sann, H.
Schwarz, C.
Sfienti, C.
Simon, H.
Suemmerer, K.
Tsang, M. B.
Verde, G.
Volant, C.
Wallace, M.
Weick, H.
Wiechula, J.
Wieloch, A.
Zwieglinski, B.
Source :
Prog.Part.Nucl.Phys.62:407-412,2009
Publication Year :
2009

Abstract

Isotopic effects in projectile fragmentation at relativistic energies have been studied with the ALADIN forward spectrometer at SIS. Stable and radioactive Sn and La beams with an incident energy of 600 MeV per nucleon have been used in order to explore a wide range of isotopic compositions. Chemical freeze-out temperatures are found to be nearly invariant with respect to the A/Z ratio of the produced spectator sources, consistent with predictions for expanded systems. Consequences for the proposed interpretation of chemical breakup temperatures as representing the limiting temperatures predicted by microscopic models are discussed.<br />Comment: 7 pages, 4 figures, contribution to proceedings of International School of Nuclear Physics, 30th Course, Heavy-Ion Collisions from the Coulomb Barrier to the Quark-Gluon Plasma, Erice-Sicily: 16 - 24 September 2008

Subjects

Subjects :
Nuclear Experiment

Details

Database :
arXiv
Journal :
Prog.Part.Nucl.Phys.62:407-412,2009
Publication Type :
Report
Accession number :
edsarx.0907.1196
Document Type :
Working Paper
Full Text :
https://doi.org/10.1016/j.ppnp.2008.12.006