旁观者碎裂中的热冻结与化学冻结
核实验
2008-11-26 v2
摘要
通过氢、氦、锂、铍和碳同位素产额的双重比得到的同位素温度，以及来自4He、5Li和8Be中粒子不稳定共振态产额比的激发态温度，在197Au与从C到Au的靶在每核子600和1000 MeV入射能量下碰撞后的旁观者碎裂中得以确定。观测到同位素温度与激发态温度之间存在偏差，该偏差与从剩余核形成到多碎片产生的转变相吻合，表明在整体解体过程中化学冻结先于热冻结。
引用
@article{arxiv.0708.4115,
title = {Thermal and Chemical Freeze-out in Spectator Fragmentation},
author = {W. Trautmann and R. Bassini and M. Begemann-Blaich and A. Ferrero and S. Fritz and S. J. Gaff-Ejakov and C. Gross and G. Imme and I. Iori and U. Kleinevoss},
journal= {arXiv preprint arXiv:0708.4115},
year = {2008}
}
备注
14 pages, 10 figures, submitted to Phys. Rev. C, small changes as suggested by the editors and referees