Pion Condensation and Density Isomer in a Relativistic Mean Field Theory : Nuclear Physics
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概要
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The coexistence of two exotic states, the pion condensate and the density isomer, is discussed based on a relativistic mean field theory. Our model is constructed so as to account for the known bulk properties of the ground state of the nuclear matter (saturation energy and density and compressibility). The development of these exotic states is quite sensitive to the pion-nucleon coupling constant and the coupling between the delta and the scalar meson. We extend the studies of Banerjee et al. to include the delta resonances and the nucleon-delta coupling through the pion. It becomes evident that the occurrence of two exotic states is related to the effective nucleon mass in a reverse way. We may conclude that for zero temperature the coexistent state does not exist and at higher densities the density isomer branch has lowest energies.
- 理論物理学刊行会の論文
- 1984-05-25
著者
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Takagi Shuji
Department Of Physics Kyoto University.
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Takagi Shuji
Department Of Applied Mathematics Faculty Of Engineering Schience Osaka University
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NAKAI Tetsuo
Department of Applied Mathematics, Faculty of Engineering Science Osaka University
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Nakai Tetsuo
Department Of Applied Mathematics Faculty Of Engineering Science Osaka University
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