Overlap functions, spectroscopic factors, and asymptotic normalization coefficients generated by a shell-model source term

Timofeyuk, Natalia (2010) Overlap functions, spectroscopic factors, and asymptotic normalization coefficients generated by a shell-model source term Physical Review C - Nuclear Physics, 81 (6), 064306. pp. 1-21.

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Abstract

Overlap functions for one-nucleon removal are calculated as solutions of the inhomogeneous equation. The source term for this equation is generated by the 0ℏω no-core shell-model wave functions and the effective nucleon-nucleon (NN) interactions that fit oscillator matrix elements derived from the NN scattering data. For the lightest A⩽4 nuclei this method gives reasonable agreement with exact ab initio calculations. For 4<A⩽16, this method gives a fair agreement between the calculated and measured asymptotic normalization coefficients. The spectroscopic factors obtained show systematic deviation from the corresponding shell-model values. This deviation correlates with nucleon separation energies and follows a similar trend seen in the reduction factor of the nucleon knockout cross sections. Comparison with the overlap functions and spectroscopic factors obtained in the variational Monte Carlo method is presented and discussed.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences > Physics
Authors :	Name Email ORCID Timofeyuk, Natalia N.Timofeyuk@surrey.ac.uk
Date :	2010
DOI :	10.1103/PhysRevC.81.064306
Copyright Disclaimer :	Copyright 2010 American Physical Society
Depositing User :	Symplectic Elements
Date Deposited :	26 Nov 2013 12:11
Last Modified :	16 Jan 2019 16:49
URI:	http://epubs.surrey.ac.uk/id/eprint/804490

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