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Title: Gamma decay of isovector giant resonances built on highly excited states in /sup 111/Sn

Abstract

Gamma-ray transition-energy spectra up to E/sub ..gamma../approx. =33 MeV have been measured for the decay of the compound nucleus /sup 111/Sn( populated at excitation energies up to E(approx. =100 MeV. Above E/sub ..gamma../approx. =20 MeV an excess of gamma rays over the contribution from the isovector giant dipole resonance is observed in the energy range where the isovector giant quadrupole resonance built on excited states is expected. The width of the giant dipole resonance in /sup 108,111/Sn( shows a large increase with increasing nuclear temperature and angular momentum.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
The Niels Bohr Institute, University of Copenhagen, Copenhagen 2100 O, Denmark
OSTI Identifier:
5676706
Resource Type:
Journal Article
Journal Name:
Phys. Rev. Lett.; (United States)
Additional Journal Information:
Journal Volume: 56:17
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NEON 20 REACTIONS; COMPOUND-NUCLEUS REACTIONS; TIN 111; GIANT RESONANCE; ZIRCONIUM 91 TARGET; ANGULAR MOMENTUM; COMPOUND NUCLEI; DIPOLE MOMENTS; ENERGY LEVELS; GAMMA SPECTRA; MATRIX ELEMENTS; MEV RANGE 100-1000; NUCLEAR TEMPERATURE; STATISTICAL MODELS; TIN 108; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; CHARGED-PARTICLE REACTIONS; ELECTRON CAPTURE RADIOISOTOPES; ENERGY RANGE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION REACTIONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; MATHEMATICAL MODELS; MEV RANGE; MINUTES LIVING RADIOISOTOPES; NUCLEAR REACTIONS; NUCLEI; RADIOISOTOPES; RESONANCE; SPECTRA; TARGETS; TIN ISOTOPES; 651723* - Nuclear Properties & Reactions, A=90-149, Experimental- Energy Levels & Transitions- (-1987); 651725 - Nuclear Properties & Reactions, A=90-149, Experimental- Nuclear Reactions & Scattering- (-1987)

Citation Formats

Gaardhoje, J.J., Ellegaard, C., Herskind, B., Diamond, R.M., Deleplanque, M.A., Dines, G., Macchiavelli, A.O., and Stephens, F.S.. Gamma decay of isovector giant resonances built on highly excited states in /sup 111/Sn. United States: N. p., 1986. Web. doi:10.1103/PhysRevLett.56.1783.
Gaardhoje, J.J., Ellegaard, C., Herskind, B., Diamond, R.M., Deleplanque, M.A., Dines, G., Macchiavelli, A.O., & Stephens, F.S.. Gamma decay of isovector giant resonances built on highly excited states in /sup 111/Sn. United States. doi:10.1103/PhysRevLett.56.1783.
Gaardhoje, J.J., Ellegaard, C., Herskind, B., Diamond, R.M., Deleplanque, M.A., Dines, G., Macchiavelli, A.O., and Stephens, F.S.. Mon . "Gamma decay of isovector giant resonances built on highly excited states in /sup 111/Sn". United States. doi:10.1103/PhysRevLett.56.1783.
@article{osti_5676706,
title = {Gamma decay of isovector giant resonances built on highly excited states in /sup 111/Sn},
author = {Gaardhoje, J.J. and Ellegaard, C. and Herskind, B. and Diamond, R.M. and Deleplanque, M.A. and Dines, G. and Macchiavelli, A.O. and Stephens, F.S.},
abstractNote = {Gamma-ray transition-energy spectra up to E/sub ..gamma../approx. =33 MeV have been measured for the decay of the compound nucleus /sup 111/Sn( populated at excitation energies up to E(approx. =100 MeV. Above E/sub ..gamma../approx. =20 MeV an excess of gamma rays over the contribution from the isovector giant dipole resonance is observed in the energy range where the isovector giant quadrupole resonance built on excited states is expected. The width of the giant dipole resonance in /sup 108,111/Sn( shows a large increase with increasing nuclear temperature and angular momentum.},
doi = {10.1103/PhysRevLett.56.1783},
journal = {Phys. Rev. Lett.; (United States)},
number = ,
volume = 56:17,
place = {United States},
year = {1986},
month = {4}
}