Photon Decay of Giant Resonances
We have determined the total gamma-decay probability, the ground-state gamma branching ratio, and the branching ratios to a number of low-lying states as a function of excitation energy in 208Pb to ~ 15 MeV. The total yield of ground-state E2 gamma radiation in 208Pb can only be understood if decay of compound states is considered. Other observations in 208Pb include the absence of a significant branch from the giant quadrupole resonance (GQR) to the low-lying collective states at 2.6 MeV and 4.08 MeV, and a strong branch to a 3- state at 4.97 MeV.
KeywordsInelastic Scattering Neutron Emission Giant Resonance Compound State Neutron Separation Energy
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- [1a]“Giant Multipole Resonances,” Proceedings of the Giant Multipole Resonance Topical Conference, Oak Ridge, Tennessee, October 1979, ed. Fred E. Bertrand (Harwood Academic Publishers, New York, 1980).Google Scholar
-  (b)“Excitation of the High Energy Nuclear Continuum in 208Pb by 22 MeV/Nucleon 17O and 32S,” F. E. Bertrand et al., submitted for publication in Phys. Rev. C.Google Scholar
- G. J. Wagner SPIOBA in Giant Multi pole Resonances, ed. F. E. Bertrand (Harwood Academic, New York, 1980), pp. 251–74.Google Scholar
- L. S. Cardman, Nucl. Phys. A354, 173c (1981).Google Scholar
- F. E. Bertrand et al., Physical Review C, to be published.Google Scholar
- A. Bohr and B. R. Mottelson, Nuclear Structure, Vol. I (Benjamin, Reading, Mass., 1969).Google Scholar
- A. Bohr and B. R. Mottelson, Nuclear Structure, Vol. II (Benjamin, Reading, Mass., 1975).Google Scholar
- J. E. Lynn, Theory of Neutron Resonance Cross Sections (Oxford University Press, Oxford, 1968).Google Scholar
- S. G. Mughabghab, M. Divadeenam, and N. E. Holden, Neutron Cross Sections (Academic Press, New York, 1981).Google Scholar