1. Isotopic dependence of the caloric curve
- Author
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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., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ALADIN2000, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
- Subjects
Nuclear and High Energy Physics ,Nuclear Theory ,Nuclear caloric curve ,FOS: Physical sciences ,Limiting temperature ,[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] ,01 natural sciences ,Caloric curve ,Nuclear physics ,0103 physical sciences ,Incident energy ,Nuclear Experiment (nucl-ex) ,Invariant (mathematics) ,Isotopic effects ,Nuclear Experiment ,010306 general physics ,Projectile fragmentation ,Physics ,Range (particle radiation) ,Multifragmentation ,Spectrometer ,010308 nuclear & particles physics ,Microscopic models ,Breakup ,Isotope temperature ,Nucleon ,Radioactive beams - 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., 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
- Published
- 2009