Fragment Distributions for Highly Charged Systems
Fragment Distributions for Highly Charged Systems
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DOI：
10.1103/physrevc.55.r2132
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发表时间：
1997-05
影响因子：
3.1
通讯作者：
C. Williams;W. G. Lynch;C. Schwarz;M. Tsang;W. Hsi;M. Huang;D. R. Bowman;J. Dinius;C. Gelbke;D. Handzy;G. Kunde;M. Lisa;G. Peaslee;L. Phair;A. Botvina;M. Lemaire;S. Souza;G. Buren;R. Charity;L. Sobotka;U. Lynen;J. Pochodzalla;H. Sann;W. Trautmann;D. Fox;R. D. Souza;N. Carlin
中科院分区：
文献类型：
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作者：
C. Williams;W. G. Lynch;C. Schwarz;M. Tsang;W. Hsi;M. Huang;D. R. Bowman;J. Dinius;C. Gelbke;D. Handzy;G. Kunde;M. Lisa;G. Peaslee;L. Phair;A. Botvina;M. Lemaire;S. Souza;G. Buren;R. Charity;L. Sobotka;U. Lynen;J. Pochodzalla;H. Sann;W. Trautmann;D. Fox;R. D. Souza;N. Carlin
对于E/A5352400 MeV的中心Kr1Au碰撞，提取了中等质量碎片的电荷和横向能量分布。测量的碎片电荷分布的斜率随入射能量单调减小，这与高带电系统的预期一致，但与最近的临界指数分析不一致。再现了实验趋势的统计模型计算表明，碎裂后的碎片二次衰变显著改变了观测到的电荷分布。从这些计算中提取的径向膨胀速度遵循Au-Au碰撞的系统学。@S0556-2813~97 50205-6#
Charge and transverse energy distributions for intermediate mass fragments have been extracted for central Kr1Au collisions at E/A5352400 MeV. The slopes of the measured fragment charge distributions decrease monotonically with incident energy, consistent with the expectations for highly charged systems, but not with recent critical exponent analyses. Statistical model calculations, which reproduce the experimental trends, suggest that post-breakup fragment secondary decays alter significantly the observed charge distributions. Radial expansion velocities extracted from these calculations follow the systematics of Au1Au collisions. @S0556-2813~97!50205-6#