Isoscalar E 0 , E 1 , and E 2 strength in 44Ca
Abstract
Isoscalar giant resonances in 44Ca have been studied with inelastic scattering of 240 MeV α particles at small angles including 0∘. A majority of the energy weighted sum rule was identified for E 0 and E 2 (≈70 % ), and nearly half was identified for E 1 . 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 40,44,48Ca increase with mass, contrary to what would be expected with a negative symmetry energy, Kτ.
- Publication:
-
Physical Review C
- Pub Date:
- November 2017
- DOI:
- 10.1103/PhysRevC.96.054330
- Bibcode:
- 2017PhRvC..96e4330B