Phys. Rev. C 69, 051301(R) (2004) [5 pages]Systematics of the bimodal isoscalar giant dipole resonance
The systematic behavior of the isoscalar giant dipole resonance (ISGDR) in 90Zr, 116Sn, 144Sm, and 208Pb is studied with inelastic α scattering at Eα=386 MeV. Multipole-decomposition analysis is applied to extract the excitation strengths of giant resonances from the (α,α′) differential cross sections at θlab=0.64°–13.5°. The bimodal structure of the ISGDR is discussed and compared with recent theoretical results from Hartree‐Fock+random‐phase‐approximation calculations. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.69.051301
DOI:
10.1103/PhysRevC.69.051301
PACS:
24.30.Cz, 21.65.+f, 24.50.+g
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