| 题名 |
Pion Polarizabilities in Hot Medium |
| 作者 |
A. E. Dorokhov；J. Hüfner；S. Klevansky；M. K. Volkov |
| 关键词 | |
| 期刊名称 |
Chinese Journal of Physics |
| 卷期/出版年月 |
34卷3S期（1996 / 06 / 01） |
| 页次 |
901 - 908 |
| 内容语文 |
英文 |
| 英文摘要 |
The pion polarizability is investigated in the Nambu- Jona - Lasinio model at finite temperature. The quark and pion loops, scalar and vector intermediate resonanses were considered. We have shown that the polarizabilities of charge and neutral pions have a very different behavior near the critical temperature if we consider the Compton effect off the pion. The charged pion polarizability is positive, decreases very quickly in the region where T ＞ 200MeV and has no contributiolls from meson clouds. The neutral pion polarizability is negative and monotonically increases in absolute value with T together with contributions of pion clouds. |
| 主题分类 |
基礎與應用科學 >
物理 |
| 被引用次数 |
