06-39 Kiro Miyazaki

Strongly magnetized neutron star matter in the extended Zimanyi-Moszkowski model (330K, PDF) Feb 23, 06

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Abstract. We investigate the neutron star matter in magnetic field using the extended Zimanyi-Moszkowski model. The anomalous magnetic moments of nucleons and the isovector-scalar mean-field are taken into account. We calculate the renormalized nucleon masses and the equations-of-state as functions of the total baryon density for several strengths of magnetic field. It is found that only the ultra strong field $B>10^{19}G$ is effective in the results. We further investigate the dependencies of the renormalized masses and the particle fractions upon the magnetic field. In weak field $B<10^{16}G$ they are constant, while the effects of Landau quantization are apparent as the field becomes stronger. Although almost the features of our results are essentially the same as those in the preceding works, we cannot reproduce the anomalous features in $B=10^{13}G$ predicted by F.X. Wei et al.

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