σ-ω Mixing for the Collective Excitation Spectra of σ, ω Mesons in Nuclear Matter |
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| Authors: | Liang-Gang LIU Lian HU |
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| Institution: | 1. Department of Physics, Zhongshan University, Guangzhou 510275, China;
2. Department of Physics, Normal University of South China, Guangzhou 510631, China |
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| Abstract: | We study σ-ω mixing on the σ and ω propagators in two ways. The collective excitation spectra of σ,ω mesons are calculated by using these propagators. We find that the two ways of σ-ω mixing give very similar collective excitation spectra in the time-like region. |
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