核量热曲线的同位素依赖性
核实验
2009-06-16 v1
摘要
利用SIS加速器上的ALADIN前向谱仪，研究了相对论能量下弹核碎裂的A/Z依赖性。使用了124Sn的稳定束流以及124La和107Sn的放射性束流（能量均为每核子600 MeV），以探索广泛的同位素组成范围。发现化学冻结温度相对于产生的旁观者源的A/Z几乎不变，这与膨胀系统的预测一致。在接近多重碎裂起始点的残核产生中，出现了微小的库仑效应（ΔT ≈ 0.6 MeV）。
引用
@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}
}
备注
11 pages, 3 figures, accepted for publ. in Phys. Rev. Lett