A scaling phenomenon in the difference of Shannon information uncertainty of fragments in heavy-ion collisions

• Published in: Journal of physics. G, Nuclear and particle physics Vol. 43; no. 4; pp. 45102 - 45109
• Main Authors: Ma, Chun-Wang, Song, Yi-Dan, Qiao, Chun-Yuan, Wang, Shan-Shan, Wei, Hui-Ling, Ma, Yu-Gang, Cao, Xi-Guang
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.08.2016
• Subjects: Dynamical systems; Evolution; Fragments; heavy-ion collisions; information entropy; Molecular dynamics; projectile fragmentation; Reactions (nuclear); scaling phenomenon; Thermodynamic models; Transport; Uncertainty
• ISSN: 0954-3899; 1361-6471
• DOI: 10.1088/0954-3899/43/4/045102

Shannon information-entropy uncertainty is used to analyze fragments in the measured 140A MeV Ca + 9Be and Ni + 9Be reactions. A scaling phenomenon is found in the information-uncertainty difference of fragments between the reactions. The scaling phenomenon is explained in the manner of canonical ensemble theory, and is reproduced in simulated reactions using the antisymmetric molecular dynamics (AMD) and AMD + GEMINI models. The probes based on information uncertainty, requiring no equilibrium state of reaction, can be used in the non-equilibrium system, and bridge the results of the static thermodynamics models and the evolving dynamical transport models.