Sendai Nuclear Science Colloquium (No. 188)

HFB and spin-response function in neutron drip line nuclei

佐川 弘幸

会津大学コンピュータ理工学部

日時:2004年08月11日(水) 14:00-

場所:大学院講義室(総合研究棟7階745号室)

Solving the simplified model of the Hartree-Fock Bogoliubov (HFB)equation in coordinate space with the correct asymptotic boundary conditions, the spin-orbit splitting, occupation probabilities, effectivepair-gap, and spin-response function are studied for weakly boundp neutrons. As the binding energy of P3/2 neutrons becomes small or approaches zero, the spin-orbit splitting P3/2-P1/2 in the one-body potential drastically decreases and, at the same time, the effective pair-gap for the p neutrons becomes small, while the occupationprobability of the P3/2 level decreases only slightly. Consequently, inthat limit low-lying broader spin-response with almost constant amountof total strength appears moving toward very low excitation energies.

13:45より茶菓を用意いたします。