Inelastic pion scattering to low-lying excited states of ⁴⁴Ca

Differential cross sections were measured for pion inelastic scattering from ⁴⁴Ca at T=180 MeV. The low-lying collective states were analyzed using distorted-wave impulse-approximation calculations with transition densities obtained from electron and previous pion scattering. The cross sections for π^- and π⁺ scattering to the low-lying collective states are nearly equal. Neutron and proton matrix elements have been extracted from simultaneous fits to π^- and π⁺ data. The resulting values are in good agreement with data from hadronic and electromagnetic probes.