Phys.Rev. C 104, 034318 (2021)

S.Calinescu, O.Sorlin, I.Matea, F.Carstoiu, D.D.Dao, F.Nowacki, G.de Angelis, R.Astabatyan, S.Bagchi, C.Borcea, R.Borcea, L.Caceres, M.Ciemala, E.Clement, Z.Dombradi, S.Franchoo, A.Gottardo, S.Grevy, H.Guerin, M.N.Harakeh, I.M.Harca, O.Kamalou, M.Kmiecik, A.Krasznahorkay, M.Krzysiek, I.Kuti, A.Lepailleur, S.Lukyanov, A.Maj, V.Maslov, K.Mazurek, P.Morfouace, J.Mrazek, F.Negoita, M.Niikura, L.Olivier, Y.Penionzhkevich, L.Perrot, C.Petrone, Z.Podolyak, C.Rigollet, T.Roger, F.Rotaru, D.Sohler, M.Stanoiu, I.Stefan, L.Stuhl, J.C.Thomas, Z.Vajta, M.Vandebrouck, O.Wieland

Coulomb and nuclear excitations of ⁷⁰Zn and ⁶⁸Ni at intermediate energy

NUCLEAR REACTIONS ²⁰⁸Pb, ¹²C(⁷⁰Zn, ⁷⁰Zn'), E=51.8 MeV/nucleon; ²⁰⁸Pb, ¹²C(⁶⁸Ni, ⁶⁸Ni'), E=40.8, 47.68 MeV, [secondary ⁶⁸Ni beam from ⁹Be(⁷⁰Zn, X), E=60 MeV/nucleon primary reaction, followed by separation of fragments using LISE3 spectrometer at GANIL and implanted in a plastic detector]; measured Doppler corrected γ spectra, Eγ, Iγ, γ(θ), scattered particles, (⁷⁰Zn)γ- and ⁶⁸Niγ-coin using 46 hexagonal BaF₂ crystals for γ detection, and position-sensitive gas-filled detectors for particles. ⁶⁸Ni, ⁷⁰Zn; deduced levels, σ, B(E2) and deformation parameters for the first and second 2+ states from intermediate energy Coulomb excitation; calculated Potential-energy surface in (β, γ) plane using constrained Hartree-Fock minimization in the shell-model basis, levels, J, π of ⁷⁰Zn using shell model, generator coordinate method (GCM), and triaxial AMP, and compared to experimental level structure.

doi: 10.1103/PhysRevC.104.034318