skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Local deviations from the Grodzins systematics: Enhanced collectivity in the transitional Ra-Th nuclei

Abstract

Local deviations from the Grodzins systematics for the product E(2/sup +/)B(E2) are observed in several light Ra-Th nuclei. We note an abrupt increase to 5.5% of the isoscalar E2 energy-weighted sum rule, almost a factor of 2 above the value typically found near shell closures and equal to the value found in the very deformed actinides. This indicates mixing of a low-lying deformed state into the ground state of the light Ra-Th nuclei, as expected for a low-lying cluster state. Evidence for mixing of a deformed state is also present in the rms radii and binding energies of these nuclei.

Authors:
Publication Date:
Research Org.:
A. W. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06511
OSTI Identifier:
6699280
Resource Type:
Journal Article
Journal Name:
Phys. Rev. Lett.; (United States)
Additional Journal Information:
Journal Volume: 61:21
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; LEAD ISOTOPES; ENERGY-LEVEL TRANSITIONS; MERCURY ISOTOPES; PLATINUM ISOTOPES; PLUTONIUM ISOTOPES; POLONIUM ISOTOPES; RADIUM ISOTOPES; RADON ISOTOPES; THORIUM ISOTOPES; URANIUM ISOTOPES; BINDING ENERGY; CLUSTER MODEL; E1-TRANSITIONS; E2-TRANSITIONS; NUCLEAR DEFORMATION; NUCLEAR RADII; ACTINIDE ISOTOPES; ALKALINE EARTH ISOTOPES; DEFORMATION; ENERGY; ISOTOPES; MATHEMATICAL MODELS; MULTIPOLE TRANSITIONS; NUCLEAR MODELS; NUCLEAR PROPERTIES; 652020* - Nuclear Properties & Reactions, A=220 & above, Experimental

Citation Formats

Gai, M. Local deviations from the Grodzins systematics: Enhanced collectivity in the transitional Ra-Th nuclei. United States: N. p., 1988. Web. doi:10.1103/PhysRevLett.61.2424.
Gai, M. Local deviations from the Grodzins systematics: Enhanced collectivity in the transitional Ra-Th nuclei. United States. https://doi.org/10.1103/PhysRevLett.61.2424
Gai, M. 1988. "Local deviations from the Grodzins systematics: Enhanced collectivity in the transitional Ra-Th nuclei". United States. https://doi.org/10.1103/PhysRevLett.61.2424.
@article{osti_6699280,
title = {Local deviations from the Grodzins systematics: Enhanced collectivity in the transitional Ra-Th nuclei},
author = {Gai, M},
abstractNote = {Local deviations from the Grodzins systematics for the product E(2/sup +/)B(E2) are observed in several light Ra-Th nuclei. We note an abrupt increase to 5.5% of the isoscalar E2 energy-weighted sum rule, almost a factor of 2 above the value typically found near shell closures and equal to the value found in the very deformed actinides. This indicates mixing of a low-lying deformed state into the ground state of the light Ra-Th nuclei, as expected for a low-lying cluster state. Evidence for mixing of a deformed state is also present in the rms radii and binding energies of these nuclei.},
doi = {10.1103/PhysRevLett.61.2424},
url = {https://www.osti.gov/biblio/6699280}, journal = {Phys. Rev. Lett.; (United States)},
number = ,
volume = 61:21,
place = {United States},
year = {Mon Nov 21 00:00:00 EST 1988},
month = {Mon Nov 21 00:00:00 EST 1988}
}