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| Isospin influences on particle emission and critical phenomena in nuclear dissociation | |
| Ma, YG（马余刚）; Su, QM（苏前敏）; Shen, WQ（沈文庆）; Han, DD; Wang, JS; Cai, XZ（蔡翔舟）; Fang, DQ（方德清）; Zhang, HY | |
| 1999 | |
| Source Publication | PHYSICAL REVIEW C
 |
| ISSN | 0556-2813 |
| Volume | 60Issue:2 |
| Abstract | Features of particle emission and critical point behavior are investigated as functions of the isospin of disassembling sources and temperature at a moderate freeze-out density far medium-size Xe isotopes in the framework of the isospin-dependent lattice gas model. Multiplicities of emitted light particles, isotopic, and isobaric ratios of light particles show the strong dependence on the isospin of the dissociation source, but double ratios of light isotope pairs and the critical temperature determined by the extreme values of some critical observables are insensitive to the isospin of the systems. Values of the power law parameter of cluster mass distribution, mean multiplicity of intermediate mass fragments (IMF), information entropy, and Campi's second moment also show a minor dependence on the isospin of Xe isotopes at the critical point. In addition, the slopes of the average multiplicities of the neutrons (N-n), protons (N-p), charged particles (N-CP), and IMFs (N-IMF), slopes of the largest fragment mass number (A(max)), and the excitation energy per nucleon of the disassembling source (E*/A) to temperature are investigated as well as variances of the distributions of N-n, N-p, N-CP, N-IMF, A(max), and E*/A. It is found that they can be taken as additional judgements to the critical phenomena. [S0556-2813(99)302108-1]. |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000082051700039 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/10030 |
| Collection | 中科院上海原子核所2003年前 |
| Recommended Citation GB/T 7714 | Ma, YG,Su, QM,Shen, WQ,et al. Isospin influences on particle emission and critical phenomena in nuclear dissociation[J]. PHYSICAL REVIEW C,1999,60(2). |
| APA | Ma, YG.,Su, QM.,Shen, WQ.,Han, DD.,Wang, JS.,...&Zhang, HY.(1999).Isospin influences on particle emission and critical phenomena in nuclear dissociation.PHYSICAL REVIEW C,60(2). |
| MLA | Ma, YG,et al."Isospin influences on particle emission and critical phenomena in nuclear dissociation".PHYSICAL REVIEW C 60.2(1999). |
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