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Extended Brueckner-Hartree-Fock theory for finite nuclei with nucleon-nucleon interaction
2011-06-14  【 】【打印】【关闭
Institute of Theoretical Physics
Chinese Academy of Sciences
学术报告
Title
题目
Extended Brueckner-Hartree-Fock theory for finite nuclei with nucleon-nucleon interaction
Speaker
报告人
Prof. Hiroshi Toki
Research Center for Nuclear Physics, Osaka University, Japan
Date
日期
2011-06-14 AM 10:00 Tuesday
Venue
地点
Conference Hall 322, ITP/理论物理所322报告厅
Abstract
摘要

The pion is important in nuclear physics. However, there is a difficulty to treat pion due to its strong tensor interaction. The Hartree-Fock (HF) state for spin-saturated nucleus provides zero matrix element for the tensor operator. Hence, we ought to extend the model space to include 2p-2h states in order for the tensor interaction to have a finite matrix element. The variational principle of the total energy provides equations for the amplitudes of 2p-2h states and also the HF single particle wave functions. The differential equation for HF single particle states resemble the Brueckner-Hartree-Fock (BHF) equation. Hence, we name the new framework as extended Brueckner-Hartree-Fock (EBHF) theory. The EBHF theory shows that there is a defect in the BHF framework. We are now able to solve for finite nuclei in the EBHF theory with bare nucleon-nucleon interaction.

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