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Title: Light Nuclei in the Framework of the Symplectic No-Core Shell Model

Abstract

A symplectic no-core shell model (Sp-NCSM) is constructed with the goal of extending the ab-initio NCSM to include strongly deformed higher-oscillator-shell configurations and to reach heavier nuclei that cannot be studied currently because the spaces encountered are too large to handle, even with the best of modern-day computers. This goal is achieved by integrating two powerful concepts: the ab-initio NCSM with that of the Sp(3,R) {contains} SU(3) group-theoretical approach. The NCSM uses modern realistic nuclear interactions in model spaces that consists of many-body configurations up to a given number of {h_bar}{Upsilon} excitations together with modern high-performance parallel computing techniques. The symplectic theory extends this picture by recognizing that when deformed configurations dominate, which they often do, the model space can be better selected so less relevant low-lying {h_bar}{Upsilon} configurations yield to more relevant high-lying {h_bar}{Upsilon} configurations, ones that respect a near symplectic symmetry found in the Hamiltonian. Results from an application of the Sp-NCSM to light nuclei are compared with those for the NCSM and with experiment.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
901844
Report Number(s):
SLAC-PUB-12432
nucl-th/0703058; TRN: US0702683
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Resource Relation:
Conference: To appear in the proceedings of 25th International Workshop on Nuclear Theory, Rila, Bulgaria, 26 Jun - 1 Jul 2006
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COMPUTERS; LIGHT NUCLEI; NUCLEAR THEORY; NUCLEI; SHELL MODELS; SYMMETRY; Theory-Nucl,HEPPH

Citation Formats

Draayer, Jerry P., Dytrych, Tomas, Sviratcheva, Kristina D., Bahri, Chairul, /Louisiana State U., Vary, James P., and /Iowa State U. /LLNL, Livermore /SLAC. Light Nuclei in the Framework of the Symplectic No-Core Shell Model. United States: N. p., 2007. Web.
Draayer, Jerry P., Dytrych, Tomas, Sviratcheva, Kristina D., Bahri, Chairul, /Louisiana State U., Vary, James P., & /Iowa State U. /LLNL, Livermore /SLAC. Light Nuclei in the Framework of the Symplectic No-Core Shell Model. United States.
Draayer, Jerry P., Dytrych, Tomas, Sviratcheva, Kristina D., Bahri, Chairul, /Louisiana State U., Vary, James P., and /Iowa State U. /LLNL, Livermore /SLAC. Mon . "Light Nuclei in the Framework of the Symplectic No-Core Shell Model". United States. doi:. https://www.osti.gov/servlets/purl/901844.
@article{osti_901844,
title = {Light Nuclei in the Framework of the Symplectic No-Core Shell Model},
author = {Draayer, Jerry P. and Dytrych, Tomas and Sviratcheva, Kristina D. and Bahri, Chairul and /Louisiana State U. and Vary, James P. and /Iowa State U. /LLNL, Livermore /SLAC},
abstractNote = {A symplectic no-core shell model (Sp-NCSM) is constructed with the goal of extending the ab-initio NCSM to include strongly deformed higher-oscillator-shell configurations and to reach heavier nuclei that cannot be studied currently because the spaces encountered are too large to handle, even with the best of modern-day computers. This goal is achieved by integrating two powerful concepts: the ab-initio NCSM with that of the Sp(3,R) {contains} SU(3) group-theoretical approach. The NCSM uses modern realistic nuclear interactions in model spaces that consists of many-body configurations up to a given number of {h_bar}{Upsilon} excitations together with modern high-performance parallel computing techniques. The symplectic theory extends this picture by recognizing that when deformed configurations dominate, which they often do, the model space can be better selected so less relevant low-lying {h_bar}{Upsilon} configurations yield to more relevant high-lying {h_bar}{Upsilon} configurations, ones that respect a near symplectic symmetry found in the Hamiltonian. Results from an application of the Sp-NCSM to light nuclei are compared with those for the NCSM and with experiment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 02 00:00:00 EDT 2007},
month = {Mon Apr 02 00:00:00 EDT 2007}
}

Conference:
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