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Details

Ab-Initio No-Core Shell Model.

DE200515013155

Publication Date	2001
Personal Author	Barrett, B. R.; Navratil, P.; Vary, W. P.; Ormand, W. E.
Page Count	12
Abstract	We discuss the no-core shell model approach, an ab initio method with effective Hamiltonians derived from realistic nucleon-nucleon (NN) potentials as a function of the finite harmonic-oscillator (HO) basis space. We present results for three and four nucleon systems in model spaces that include up to 50hOmega and 18hOmega HO excitations, respectively. For these light systems we are in agreement with results obtained by other exact methods. Also, we calculate the properties of 6Li and 6He in model spaces up to lOhOmega, and of (sup 12)C for model spaces up to 6hOmega.
Keywords	Ab initio Excitation Hamiltonians Motivation Theory Formulations Shell models Nuclei Nucleons Spectra Radiation physics No-Core Shell Model (NCSM)
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200602

Ab-Initio No-Core Shell Model.

Ab-Initio No-Core Shell Model.
DE200515013155

Publication Date	2001
Personal Author	Barrett, B. R.; Navratil, P.; Vary, W. P.; Ormand, W. E.
Page Count	12
Abstract	We discuss the no-core shell model approach, an ab initio method with effective Hamiltonians derived from realistic nucleon-nucleon (NN) potentials as a function of the finite harmonic-oscillator (HO) basis space. We present results for three and four nucleon systems in model spaces that include up to 50hOmega and 18hOmega HO excitations, respectively. For these light systems we are in agreement with results obtained by other exact methods. Also, we calculate the properties of 6Li and 6He in model spaces up to lOhOmega, and of (sup 12)C for model spaces up to 6hOmega.
Keywords	Ab initio Excitation Hamiltonians Motivation Theory Formulations Shell models Nuclei Nucleons Spectra Radiation physics No-Core Shell Model (NCSM)
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200602