The ω meson at high temperatures

被引:17
|
作者
Schneider, RA [1 ]
Weise, W
机构
[1] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany
[2] ECT, I-38050 Villazzano, Trento, Italy
关键词
D O I
10.1016/S0370-2693(01)00822-X
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The decay of the omega meson in a heat bath of thermally excited pions is studied within the framework of real-time thermal field theory using an appropriate effective Lagrangian. We show that the omega meson spectrum broadens considerably at temperatures T > 100 MeV, primarily because of omega pi --> pi pi reactions in the thermal environment. @ 2001 Published by Elsevier Science B.V.
引用
收藏
页码:89 / 93
页数:5
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