Quantum Monte Carlo calculations of light nuclei.
Variational Monte Carlo and Green's function Monte Carlo are powerful tools for cal- culations of properties of light nuclei using realistic two-nucleon (NN) and three-nucleon (NNN) potentials. Recently the GFMC method has been extended to multiple states with the same quantum numbers. The combination of the Argonne v18 two-nucleon and Illinois-2 three-nucleon potentials gives a good prediction of many energies of nuclei up to 12 C. A number of other recent results are presented: comparison of binding energies with those obtained by the no-core shell model; the incompatibility of modern nuclear Hamiltonians with a bound tetra-neutron; difficulties in computing RMS radii of very weakly bound nuclei, such as 6He; center-of-mass effects on spectroscopic factors; and the possible use of an artificial external well in calculations of neutron-rich isotopes.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 982030
- Report Number(s):
- ANL/PHY/DIV-CP60438; TRN: US1004263
- Journal Information:
- Riv. Nuovo Cimento, Vol. 31, Issue 12 ; 2008; Conference: Enrico Fermi Summer School; Jul. 17, 2007 - Jul. 27, 2007; Varenna, Italy
- Country of Publication:
- United States
- Language:
- ENGLISH
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