The properties of lambda hypernuclei with deformed Skyrme Hartree-Fock method
Zhou Xian-Rong
中国・厦門大学
日時：2009年11月17日（火） 14:45-
場所：原子核理論セミナー室（総合研究棟10階1021号室）
We extended the deformed Skyrme Hartree-fock (DSHF) method to lambda hypernuclei byincluding a microscopically determined lambda-nucleon interaction based onBrueckner-Hartree-Fock calculations of asymmetric hypernuclear matter[1].The extension is a generalization of closed-shell spherical hypernuclei in Ref.[2,3]to more complicated open-shell hypernuclei with realistic effective interactions.We studied the properties of lambda hypernuclei in a broad mass region with the extendedDSHF. The results suggest that the core nuclei and the corresponding hypernuclei havesimilar deformations with the same sign. Some light single-lambda hypernuclei aresubstantially deformed and the lambda binding energies is modified by the deformation.With the same method, we investigated the effect of additional lambda hyperon onthe drip line of neutron-rich nuclei and the structure of halo nuclei[4,5].Some interesting results are obtained.[1] J. Cugnon, A. Lejeune, and H.-J. Schulze, Phys. Rev. C 62, 064308 (2000).[2] I. Vidana, A. Polls, A. Ramos, and H.-J. Schulze, Phys. Rev. C 64, 044301 (2001).[3] Xian-Rong Zhou, H.-J. Schulze, H. Sagawa, Chen-Xu wu, and En-Guang Zhao, Phys. Rev. C 76, 034312 (2007).[4] Xian-Rong Zhou, A. Polls, H.-J. Schulze, and I. Vidana, Phys. Rev. C 78, 054306 (2008).[5] Xian-Rong Zhou, Ning Wei, in preparation.