THE WIDTH OF GIANT RESONANCES IN HEAVY NUCLEI,
Abstract
In heavy nuclei the damping of the giant resonance is due to thermalization of the energy rather than to direct emission of particles; the latter process is strongly inhibited by the angular momentum barrier. The thermalization proceeds via inelastic collisions leading from the particle-hole state to two-particle twohole states. In heavy nuclei several hundred such states are available at the energy of the giant dipole resonance. The rather large width of the giant resonance arises from the addition of many small partial widths of channels leading to the different two-particle two-hole states. Both the density of the two-particle two-hole states and the mean value of the matrix elements are evaluated in a simplified square well shell model. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1964
- Accession Number
- AD0431660
Entities
People
- Michael Danos
- Walter Grenier
Organizations
- University of Maryland