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Date:  Jan. 29 (Thursday) 〜 31 (Saturday)

Prticipants: K. Ikeda, S. Sugimoto, H. Toki, Y. Ogawa, S. Tamenaga, T. Myo, A. Haga

Contents:

Jan. 29 Workshop symposium --- open for public

Jan. 30 Informal discussion on the role of pion in nucleus ?closed session

Jan. 31 Discussions on writing papers (Toki, Ikeda, Sugimoto)



Program on the Workshop symposium

Date and time: Jan. 29 2pm~6pm

Place: RCNP 4th floor Seminar room

Speakers:

1. K. Ikeda, Effective interaction with and without pion and the parity and charge projected Hartree-Fock theory

2. S. Sugimoto, Application of the parity and charge projected Hartree-Fock model on alpha and oxigen isotopes

3. Y. Ogawa, Parity and charge projected relativistic mean field theory for extended chiral sigma model

4. Y. Myo, Role of the tensor force for the production of the halo structure in Li-11 and the structure of Li isotopes

5. S. Tamenaga, The renormalization scheme of the chiral sigma model



Contents of the workshop:

It is getting clear that the the pion should be treated explicitly for the structure of finite nucleus. The density dependence of the effective interaction (G-matrix) is removed when the tensor force (pion exchange) is removed in the G-matrix calculation. In this case, we have to treat the tensor force explicitly for the nuclear structure calculations. A new method is proposed in which intrinsic single particle states are constructed by breaking the parity and the charge quantum numbers. The variational wave function is then constructed by making the projection of the parity and the charge from the total intrinsic wave function and take variation of the expectation value of the Hamiltonian with respect to the single particle state. This formulation is named as the parity and charge projected Hartree-Fock method with finite pion mean field. We discuss the calculational details of this method and also the calculated results. In the closed session, we would like to discuss on the content of the publicaiton.


Chairman: H. Toki