Isotopic Dependence of the Nuclear Caloric Curve
Nuclear Experiment
2009-06-16 v1
Abstract
The A/Z dependence of projectile fragmentation at relativistic energies has been studied with the ALADIN forward spectrometer at SIS. A stable beam of 124Sn and radioactive beams of 124La and 107Sn at 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 of the produced spectator sources, consistent with predictions for expanded systems. Small Coulomb effects (\Delta T \approx 0.6 MeV) appear for residue production near the onset of multifragmentation.
Keywords
Cite
@article{arxiv.0903.1772,
title = {Isotopic Dependence of the Nuclear Caloric Curve},
author = {The ALADIN2000 Collaboration and C. Sfienti and P. Adrich and T. Aumann and C. O. Bacri and T. Barczyk and R. Bassini and S. Bianchin and C. Boiano and A. S. Botvina and A. Boudard and J. Brzychczyk and A. Chbihi and J. Cibor and B. Czech and M. De Napoli and J. -E. Ducret and H. Emling and J. D. Frankland and M. Hellstroem and D. Henzlova and G. Imme and I. Iori and H. Johansson and K. Kezzar and A. Lafriakh and A. Le Fevre and E. Le Gentil and Y. Leifels and J. Luehning and J. Lukasik and W. G. Lynch and U. Lynen and Z. Majka and M. Mocko and W. F. J. Mueller and A. Mykulyak and H. Orth and A. N. Otte and R. Palit and P. Pawlowski and A. Pullia and G. Raciti and E. Rapisarda and H. Sann and C. Schwarz and H. Simon and K. Suemmerer and W. Trautmann and M. B. Tsang and G. Verde and C. Volant and M. Wallace and H. Weick and J. Wiechula and A. Wieloch and B. Zwieglinski},
journal= {arXiv preprint arXiv:0903.1772},
year = {2009}
}
Comments
11 pages, 3 figures, accepted for publ. in Phys. Rev. Lett