Search for pairing-vibration states of even Ca isotopes in 40 Ca+ 208 Pb transfer reactions
S. Szilner, L. Corradi, B.R. Behera, E. Fioretto, A. Gadea, A. Latina, A.M. Stefanini, M.Trotta, A.M. Vinodkumar, Y.W. Wu, S.Beghini, G.Montagnoli, F.Scarlassara, G.Pollarolo, F. Haas, E. Caurier, F. Nowacki
Abstract
Multi-nucleon transfer reactions in
40
Ca+
208
Pb have been studied at several bombarding energies close to the Coulomb barrier. Light reaction products have been identified in mass and charge with a time-of-flight spectrometer. The energy spectra of the inclusive two neutron pick-up channel show a population in a narrow region of excitation energies which corresponds to the predicted energy of pairing vibration states in
42
Ca.