Damping of single-particle states and giant resonances in 208 Pb

1979
5 pages
Published in:
  • Phys.Lett.B 80 (1979) 161-165
  • Published: 1979

Citations per year

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Abstract: (Elsevier)
The damping width of single-particle states and of giant resonances is estimated in 208 Pb, based on the excitation of surface modes and T = 1 pairs. The damping is dominated by the collectivity of the surface modes, with the pairing modes playing a weaker role. For both the single-particle states and giant resonances, the predicted damping is somewhat small. This could be due to the neglect of T = 0 particle-particle correlations or to the neglect of the volume modes. The damping for the giant resonances is reduced by the coherence between particle and hole.