Isotopic Dependence of the Giant Monopole Resonance in the Even- A Sn 112 – 124 Isotopes and the Asymmetry Term in Nuclear Incompressibility

University of Groningen, Groningen, Groningen, Netherlands
Physical Review Letters (Impact Factor: 7.51). 11/2007; 99(16):162503. DOI: 10.1103/PHYSREVLETT.99.162503
Source: PubMed


The strength distributions of the giant monopole resonance (GMR) have been measured in the even-A Sn isotopes (A=112-124) with inelastic scattering of 400-MeV alpha particles in the angular range 0 degrees -8.5 degrees . We find that the experimentally observed GMR energies of the Sn isotopes are lower than the values predicted by theoretical calculations that reproduce the GMR energies in 208Pb and 90Zr very well. From the GMR data, a value of Ktau = -550 +/- 100 MeV is obtained for the asymmetry term in the nuclear incompressibility.

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Available from: Harutaka Sakaguchi, Jan 12, 2013
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