Nuclear structure with accurate chiral perturbation theory nucleon-nucleon potential: Application to 6Li and 10B

Navratil, P ; Caurier, E

Lawrence Livermore National Laboratory

关键词: Enantiomorphs;    Excitation;    Hamiltonians;    Shell Models;    71 Classical And Quantum Mechanics, General Physics;   

DOI  :  10.2172/15009732
RP-ID  :  UCRL-TR-200504
RP-ID  :  W-7405-ENG-48
RP-ID  :  15009732

美国|英语

来源: UNT Digital Library

【 摘 要 】

The authors calculate properties of A = 6 system using the accurate charge-dependent nucleon-nucleon (NN) potential at fourth order of chiral perturbation theory. By application of the ab initio no-core shell model (NCSM) and a variational calculation in the harmonic oscillator basis with basis size up to 16 {h_bar}{Omega} they obtain the {sup 6}Li binding energy of 28.5(5) MeV and a converged excitation spectrum. Also, they calculate properties of {sup 10}B using the same NN potential in a basis space of up to 8 {h_bar}{Omega}. The results are consistent with results obtained by standard accurate NN potentials and demonstrate a deficiency of Hamiltonians consisting of only two-body terms. At this order of chiral perturbation theory three-body terms appear. It is expected that inclusion of such terms in the Hamiltonian will improve agreement with experiment.