Phys.Rev. C 93, 044335 (2016)

K.Nowak, K.Wimmer, S.Hellgartner, D.Mucher, V.Bildstein, J.Diriken, J.Elseviers, L.P.Gaffney, R.Gernhauser, J.Iwanicki, J.G.Johansen, M.Huyse, J.Konki, T.Kroll, R.Krucken, R.Lutter, R.Orlandi, J.Pakarinen, R.Raabe, P.Reiter, T.Roger, G.Schrieder, M.Seidlitz, O.Sorlin, P.Van Duppen, N.Warr, H.De Witte, M.Zielinska

Spectroscopy of ⁴⁶Ar by the (t, p) two-neutron transfer reaction

NUCLEAR REACTIONS ³H(⁴⁴Ar, p)⁴⁶Ar, E=2.16 MeV/nucleon, [⁴⁴Ar secondary beam from U(p, X), E=1.4 GeV primary beam using FEBIAD ion source and HRS separator at CERN]; measured recoil proton and other light-particle spectra using T-REX silicon array, Eγ, Iγ, (recoil protons)γ-coin using MINIBALL array for γ-ray detection, angular distribution of protons from 2n-transfer channel at REX-ISOLDE-CERN facility. DWBA analysis of σ(θ) data for protons using amplitudes calculated with SDPF-MU, SDPF-U and EPQQM shell-model effective interactions. ⁴⁶Ar; deduced levels, J, π. Comparison of level spectrum with shell-model calculations.

NUCLEAR STRUCTURE ⁴⁶Ar; calculated levels, J, π by shell model using SDPF-NR, SDPF-MU, SDPF-U and EPQQM effective interactions, spectroscopic amplitudes and two-nucleon amplitudes (TNA) in transfer reactions, wave functions. Discussed B(E2) for the first 2+ state.

doi: 10.1103/PhysRevC.93.044335