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Title: Isospin-symmetry-breaking effects in A∼70 nuclei within beyond-mean-field approach

Abstract

Particular isospin-symmetry-breaking probes including Coulomb energy differences (CED), mirror energy differences (MED), and triplet energy differences (TED) manifest anomalies in the A∼70 isovector triplets of nuclei. The structure of proton-rich nuclei in the A∼70 mass region suggests shape coexistence and competition between pairing correlations in different channels. Recent results concerning the interplay between isospin-mixing and shape-coexistence effects on exotic phenomena in A∼70 nuclei obtained within the beyond-mean-field complex Excited Vampir variational model with symmetry projection before variation using a realistic effective interaction in a relatively large model space are presented. Excited Vampir predictions concerning the Gamow-Teller β decay to the odd-odd N=Z {sup 66}As and {sup 70}Br nuclei correlated with the pair structure analysis in the T=1 and T=0 channel of the involved wave functions are discussed.

Authors:
;  [1]
  1. National Institute for Physics and Nuclear Engineering, R-077125 Bucharest (Romania)
Publication Date:
OSTI Identifier:
22390976
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1645; Journal Issue: 1; Conference: Carpathian Summer School of Physics 2014, Sinaia (Romania), 13-26 Jul 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ARSENIC 66; BROMINE 70; CORRELATIONS; COULOMB ENERGY; GAMOW-TELLER RULES; ISOSPIN; ISOVECTORS; MEAN-FIELD THEORY; NUCLEAR MODELS; NUCLEAR STRUCTURE; PROTONS; SYMMETRY BREAKING; TRIPLETS; VARIATIONAL METHODS; WAVE FUNCTIONS

Citation Formats

Petrovici, A., and Andrei, O.. Isospin-symmetry-breaking effects in A∼70 nuclei within beyond-mean-field approach. United States: N. p., 2015. Web. doi:10.1063/1.4909556.
Petrovici, A., & Andrei, O.. Isospin-symmetry-breaking effects in A∼70 nuclei within beyond-mean-field approach. United States. doi:10.1063/1.4909556.
Petrovici, A., and Andrei, O.. Tue . "Isospin-symmetry-breaking effects in A∼70 nuclei within beyond-mean-field approach". United States. doi:10.1063/1.4909556.
@article{osti_22390976,
title = {Isospin-symmetry-breaking effects in A∼70 nuclei within beyond-mean-field approach},
author = {Petrovici, A. and Andrei, O.},
abstractNote = {Particular isospin-symmetry-breaking probes including Coulomb energy differences (CED), mirror energy differences (MED), and triplet energy differences (TED) manifest anomalies in the A∼70 isovector triplets of nuclei. The structure of proton-rich nuclei in the A∼70 mass region suggests shape coexistence and competition between pairing correlations in different channels. Recent results concerning the interplay between isospin-mixing and shape-coexistence effects on exotic phenomena in A∼70 nuclei obtained within the beyond-mean-field complex Excited Vampir variational model with symmetry projection before variation using a realistic effective interaction in a relatively large model space are presented. Excited Vampir predictions concerning the Gamow-Teller β decay to the odd-odd N=Z {sup 66}As and {sup 70}Br nuclei correlated with the pair structure analysis in the T=1 and T=0 channel of the involved wave functions are discussed.},
doi = {10.1063/1.4909556},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1645,
place = {United States},
year = {Tue Feb 24 00:00:00 EST 2015},
month = {Tue Feb 24 00:00:00 EST 2015}
}