Isobaric yield ratios and the symmetry energy in heavy-ion reactions near the Fermi energy
文献类型：期刊论文
| 作者 | Huang, M ; Chen, Z ; Kowalski, S ; Ma, YG（马余刚） ; Wada, R ; Keutgen, T ; Hagel, K ; Barbui, M ; Bonasera, A ; Bottosso, C ; Materna, T ; Natowitz, JB ; Qin, L ; Rodrigues, MRD ; Sahu, PK ; Wang, J |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2010 |
| 卷号 | 81期号:4页码:9 |
| ISSN号 | 0556-2813 |
| 通讯作者 | Huang, M (reprint author), Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA |
| 英文摘要 | The relative isobaric yields of fragments produced in a series of heavy-ion-induced multifragmentation reactions have been analyzed in the framework of a modified Fisher model, primarily to determine the ratio of the symmetry energy coefficient to the temperature, a(sym)/T, as a function of fragment mass A. The extracted values increase from 5 to similar to 16 as A increases from 9 to 37. These values have been compared to the results of calculations using the antisymmetrized molecular dynamics (AMD) model together with the statistical decay code GEMINI. The calculated ratios are in good agreement with those extracted from the experiment. In contrast, the values extracted from the ratios of the primary isobars from the AMD model calculation are similar to 4 to 5 and show little variation with A. This observation indicates that the value of the symmetry energy coefficient derived from final fragment observables may be significantly different than the actual value at the time of fragment formation. The experimentally observed pairing effect is also studied within the same simulations. The Coulomb coefficient is also discussed. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277209500055 |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/6951]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2004-2010年 |
| 推荐引用方式 GB/T 7714 | Huang, M,Chen, Z,Kowalski, S,et al. Isobaric yield ratios and the symmetry energy in heavy-ion reactions near the Fermi energy[J]. PHYSICAL REVIEW C,2010,81(4):9. |
| APA | Huang, M.,Chen, Z.,Kowalski, S.,Ma, YG.,Wada, R.,...&Wang, J.(2010).Isobaric yield ratios and the symmetry energy in heavy-ion reactions near the Fermi energy.PHYSICAL REVIEW C,81(4),9. |
| MLA | Huang, M,et al."Isobaric yield ratios and the symmetry energy in heavy-ion reactions near the Fermi energy".PHYSICAL REVIEW C 81.4(2010):9. |
入库方式： OAI收割
来源：上海应用物理研究所
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