Speaker
Description
We calculated the equation of state (EOS) of spin-polarized nuclear matter in the relativistic Hartree-Fock method. To this end, we employed the relativistic point-coupling model, with which the Fock terms are considerably simplified, reducing them to the same form as the Hartree terms. In analogy to the slope parameter $L$ of the isospin-symmetry energy for spin-unpolarized matter, we evaluated the spin slope parameter $L_s$ of the corresponding spin-symmetry energy for spin-polarized matter. We will show that the slope parameter $L$ and the spin slope parameter $L_s$ have a negative correlation in the case of isoscalar polarization, where neutrons and protons are spin-polarized in the same direction. On the other hand, the spin slope parameter $L_s$ is nearly independent of the slope parameter $L$ in the case of isovector polarization, where neutrons are spin-polarized along the opposite direction to protons. We will also show that these correlations are a natural consequence of the relativistic point coupling model which we employ.
| Presentation Style | Oral Presentation |
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