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Title: Ab Initio Large-Basis No-Core Shell Model

Abstract

We discuss the motivation, theory, and formulation of the ab initio No-Core Shell Model (NCSM). In this method the effective Hamiltonians are derived microscopically from realistic nucleon-nucleon (NN) and theoretical three-nucleon (NNN) potentials, as a function of the finite harmonic-oscillator (HO) basis space. We present converged results for the A = 3 and 4 nucleon systems, which are in agreement with results obtained by other exact methods, followed by results for p-shell nuclei. Binding energies, rms radii, excitation spectra, and electromagnetic properties are discussed.The favorable comparison with available data is a consequence of the underlying NN and NNN interactions rather than a phenomenological fit.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
15011511
Report Number(s):
UCRL-PROC-210305
TRN: US0501307
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: International Conference on Nuclear Data for Science & Technology, Santa Fe, NM (US), 09/26/2004--10/01/2004; Other Information: PBD: 11 Feb 2005
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; EXCITATION; HAMILTONIANS; NUCLEI; NUCLEONS; SHELL MODELS; SPECTRA

Citation Formats

Barrett, B R, Navratil, P, Nogga, A, Ormand, W E, Stetcu, I, Vary, J P, and Zhan, H. Ab Initio Large-Basis No-Core Shell Model. United States: N. p., 2005. Web.
Barrett, B R, Navratil, P, Nogga, A, Ormand, W E, Stetcu, I, Vary, J P, & Zhan, H. Ab Initio Large-Basis No-Core Shell Model. United States.
Barrett, B R, Navratil, P, Nogga, A, Ormand, W E, Stetcu, I, Vary, J P, and Zhan, H. Fri . "Ab Initio Large-Basis No-Core Shell Model". United States. https://www.osti.gov/servlets/purl/15011511.
@article{osti_15011511,
title = {Ab Initio Large-Basis No-Core Shell Model},
author = {Barrett, B R and Navratil, P and Nogga, A and Ormand, W E and Stetcu, I and Vary, J P and Zhan, H},
abstractNote = {We discuss the motivation, theory, and formulation of the ab initio No-Core Shell Model (NCSM). In this method the effective Hamiltonians are derived microscopically from realistic nucleon-nucleon (NN) and theoretical three-nucleon (NNN) potentials, as a function of the finite harmonic-oscillator (HO) basis space. We present converged results for the A = 3 and 4 nucleon systems, which are in agreement with results obtained by other exact methods, followed by results for p-shell nuclei. Binding energies, rms radii, excitation spectra, and electromagnetic properties are discussed.The favorable comparison with available data is a consequence of the underlying NN and NNN interactions rather than a phenomenological fit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {2}
}

Conference:
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