Isoscalar E 0 , E 1 , and E 2 strength in Ca 44

Isoscalar giant resonances in Ca-44 have been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0 degrees. A majority of the energy weighted sum rule was identified for E0 and E2 (approximate to 70%), and nearly half was identified for E1. The strength distributions are compared with the predictions from Hartree-Fock based random phase approximation calculations with the KDE0v1 Skyrme-type interaction. The giant monopole resonance energy moments for Ca-40,Ca-44,Ca-48 increase with mass, contrary to what would be expected with a negative symmetry energy, K-tau.