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Effective Mass of ρ-Meson in Medium |
WANG Ping;SU Ru-keng |
Department of Physics, Fudan University, Shanghai 200433 |
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Cite this article: |
WANG Ping, SU Ru-keng 1999 Chin. Phys. Lett. 16 793-795 |
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Abstract The effective mass of ρ-meson in medium has been calculated for the Welecka, Bonn potential, Zimanyi-Moszkowski, quark-meson coupling and vector-tensor coupling models, respectively. The vacuum fluctuation effects are taken into account. It is shown that the formula of nucleon effective mass suggested by Brown-Rho scaling can get a best fit with experiments provided the adjusted parameter y equals to 0.10 and 0.19 for strong and weak tensor coupling, respectively.
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Keywords:
14.40.Cs
24.10.Jv
13.75.Cs
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Published: 01 November 1999
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