Ab-Initio Shell Model with a Core
Journal Article
·
· Physical Review C, vol. 78, no. 4, October 10, 2008, pp. 044302
OSTI ID:945612
We construct effective 2- and 3-body Hamiltonians for the p-shell by performing 12{h_bar}{Omega} ab initio no-core shell model (NCSM) calculations for A=6 and 7 nuclei and explicitly projecting the many-body Hamiltonians onto the 0{h_bar}{Omega} space. We then separate these effective Hamiltonians into 0-, 1- and 2-body contributions (also 3-body for A=7) and analyze the systematic behavior of these different parts as a function of the mass number A and size of the NCSM basis space. The role of effective 3- and higher-body interactions for A > 6 is investigated and discussed.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 945612
- Report Number(s):
- LLNL-JRNL-404546
- Journal Information:
- Physical Review C, vol. 78, no. 4, October 10, 2008, pp. 044302, Journal Name: Physical Review C, vol. 78, no. 4, October 10, 2008, pp. 044302 Journal Issue: 4 Vol. 78
- Country of Publication:
- United States
- Language:
- English
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