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Title: Structure of {sup 23}F via {beta} decay of {sup 23}O

Abstract

The nuclear states in {sup 23}F have been investigated following the {beta} decay of {sup 23}O. The measurement of {sup 23}O was carried out at the National Superconducting Cyclotron Laboratory using fragments from the reaction of a {sup 48}Ca beam in a Be target. The half-life and total neutron emission probability were determined to be 97(8) ms and 7(2)%, respectively, for {sup 23}O {beta} decay. Ten {gamma}-ray decays in {sup 23}F and a single {gamma}-ray in {sup 22}F were observed to establish the {beta} decay scheme for {sup 23}O. Shell model calculations are in reasonable agreement with the measured {beta} branching and B(GT) values for the lowest energy state. The excitation energies of the first 1/2{sup +} and 3/2{sup +} states have been determined to be 2243(8) and 4066(16) keV, respectively, indicating a widening of the 5/2{sup +}-1/2{sup +} state gap in {sup 23}F. The decay scheme of the largest contaminant {sup 26}Ne in the experiment was established.

Authors:
; ; ; ; ;  [1];  [2]; ; ;  [1];  [2]; ; ;  [1]
  1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20991006
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevC.75.024305; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BEAMS; BETA DECAY; BRANCHING RATIO; CALCIUM 48; EXCITATION; FLUORINE 22; FLUORINE 23; GAMMA RADIATION; HALF-LIFE; KEV RANGE; NEON 26; NEUTRON EMISSION; OXYGEN 23; SHELL MODELS; SUPERCONDUCTING CYCLOTRONS

Citation Formats

Sumithrarachchi, C. S., Morrissey, D. J., Davies, D. A., Mantica, P. F., Stoker, J., Weerasiri, R. R., Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, Brown, B. A., Davies, A. D., Kwan, E., Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, Fancina, M., Portillo, M., and Shimbara, Y.. Structure of {sup 23}F via {beta} decay of {sup 23}O. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.024305.
Sumithrarachchi, C. S., Morrissey, D. J., Davies, D. A., Mantica, P. F., Stoker, J., Weerasiri, R. R., Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, Brown, B. A., Davies, A. D., Kwan, E., Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, Fancina, M., Portillo, M., & Shimbara, Y.. Structure of {sup 23}F via {beta} decay of {sup 23}O. United States. doi:10.1103/PHYSREVC.75.024305.
Sumithrarachchi, C. S., Morrissey, D. J., Davies, D. A., Mantica, P. F., Stoker, J., Weerasiri, R. R., Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, Brown, B. A., Davies, A. D., Kwan, E., Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, Fancina, M., Portillo, M., and Shimbara, Y.. Thu . "Structure of {sup 23}F via {beta} decay of {sup 23}O". United States. doi:10.1103/PHYSREVC.75.024305.
@article{osti_20991006,
title = {Structure of {sup 23}F via {beta} decay of {sup 23}O},
author = {Sumithrarachchi, C. S. and Morrissey, D. J. and Davies, D. A. and Mantica, P. F. and Stoker, J. and Weerasiri, R. R. and Department of Chemistry, Michigan State University, East Lansing, Michigan 48824 and Brown, B. A. and Davies, A. D. and Kwan, E. and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 and Fancina, M. and Portillo, M. and Shimbara, Y.},
abstractNote = {The nuclear states in {sup 23}F have been investigated following the {beta} decay of {sup 23}O. The measurement of {sup 23}O was carried out at the National Superconducting Cyclotron Laboratory using fragments from the reaction of a {sup 48}Ca beam in a Be target. The half-life and total neutron emission probability were determined to be 97(8) ms and 7(2)%, respectively, for {sup 23}O {beta} decay. Ten {gamma}-ray decays in {sup 23}F and a single {gamma}-ray in {sup 22}F were observed to establish the {beta} decay scheme for {sup 23}O. Shell model calculations are in reasonable agreement with the measured {beta} branching and B(GT) values for the lowest energy state. The excitation energies of the first 1/2{sup +} and 3/2{sup +} states have been determined to be 2243(8) and 4066(16) keV, respectively, indicating a widening of the 5/2{sup +}-1/2{sup +} state gap in {sup 23}F. The decay scheme of the largest contaminant {sup 26}Ne in the experiment was established.},
doi = {10.1103/PHYSREVC.75.024305},
journal = {Physical Review. C, Nuclear Physics},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}