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arXiv 0709.1618nucl-ex
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激发重核碎裂过程中的产额标度、尺寸等级和观测量涨落

Yield scaling, size hierarchy and fluctuations of observables in fragmentation of excited heavy nuclei

N. Le Neindre, E. Bonnet, J. P. Wieleczko, B. Borderie, F. Gulminelli, M. F. Rivet, R. Bougault, A. Chbihi, R. Dayras, J. D. Frankland, E. Galichet, D. Guinet, … 展开作者

N. Le Neindre, E. Bonnet, J. P. Wieleczko, B. Borderie, F. Gulminelli, M. F. Rivet, R. Bougault, A. Chbihi, R. Dayras, J. D. Frankland, E. Galichet, D. Guinet, P. Lautesse, O. Lopez, J. Lukasik, D. Mercier, J. Moisan, M. Parlog, E. Rosato, R. Roy, C. Schwarz, C. Sfienti, B. Tamain, W. Trautmann, A. Trzcinski, K. Turzo, E. Vient, M. Vigilante, B. Zwieglinski

摘要:

本文研究了入射能量为32-50 A MeV的Sn +Sn反应产生的单源和80 A MeV的Au+Au碰撞产生的准粒子的多重碎裂性质。这两种类型的源的比较有关Fisher标度,Zipf定律,碎片大小和波动观测。所有数据均观察到Fisher标度。从Fisher标度中提取的赝临界能量在Au +Sn中心碰撞和Au准抛射体之间是一致的。在后一种情况下,它也对应于波动最大的能量区域。由Zipf分析得到的临界能高于Fisher分析得到的临界能。

英文摘要:

Multifragmentation properties measured with INDRA are studied for single sources produced in Xe+Sn reactions in the incident energy range 32-50 A MeV and quasiprojectiles from Au+Au collisions at 80 A MeV. A comparison for both types of sources is presented concerning Fisher scaling, Zipf law, fragment size and fluctuation observables. A Fisher scaling is observed for all the data. The pseudo-critical energies extracted from the Fisher scaling are consistent between Xe+Sn central collisions and Au quasi-projectiles. In the latter case it also corresponds to the energy region at which fluctuations are maximal. The critical energies deduced from the Zipf analysis are higher than those from the Fisher analysis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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