Mass shift of sigma-Meson in Nuclear Matter
Pramana(2010)
摘要
The propagation of sigma meson in nuclear matter is studied in the Walecka
model, assuming that the sigma couples to a pair of nucleon-antinucleon states
and to particle-hole states, including the in medium effect of sigma-omega
mixing. We have also considered, by completeness, the coupling of sigma to two
virtual pions. We have found that the sigma meson mass decreases respect to its
value in vacuum and that the contribution of the sigma omega mixing effect on
the mass shift is relatively small.
更多查看译文
关键词
high energy physics,mixed effects,nuclear matter
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要