Phys.Rev. C 81, 051304 (2010)

A.Gade, R.V.F.Janssens, T.Baugher, D.Bazin, B.A.Brown, M.P.Carpenter, C.J.Chiara, A.N.Deacon, S.J.Freeman, G.F.Grinyer, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, S.McDaniel, K.Meierbachtol, A.Ratkiewicz, S.R.Stroberg, K.A.Walsh, D.Weisshaar, R.Winkler, S.Zhu

Collectivity at N = 40 in neutron-rich ⁶⁴Cr

NUCLEAR REACTIONS ⁹Be(⁶²Fe, ⁶²Fe'), E=73.0 MeV/nucleon [⁶²Fe secondary beam from primary reaction ⁹Be(⁷⁶Ge, X), E=130 MeV/nucleon], ⁹Be(⁶⁴Fe, ⁶⁴Fe'), E=67.5 MeV/nucleon [⁶⁴Fe secondary beam from primary reaction ⁹Be(⁷⁶Ge, X), E=130 MeV/nucleon], ⁹Be(⁶⁶Fe, ⁶⁶Fe'), E=82.6 MeV/nucleon [⁶⁶Fe secondary beam from primary reaction ⁹Be(⁷⁶Ge, X), E=130 MeV/nucleon], ⁹Be(⁶⁰Cr, ⁶⁰Cr'), E=80.6 MeV/nucleon [⁶⁰Cr secondary beam from primary reaction ⁹Be(⁷⁶Ge, X), E=130 MeV/nucleon], ⁹Be(⁶²Cr, ⁶²Cr'), E=74.6 MeV/nucleon [⁶²Cr secondary beam from primary reaction ⁹Be(⁷⁶Ge, X), E=130 MeV/nucleon], ⁹Be(⁶⁴Cr, ⁶⁴Cr'), E=87.0 MeV/nucleon [⁶⁴Cr secondary beam from primary reaction ⁹Be(⁷⁶Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, (particle)γ-coin, σ. ^62,64,66Fe, ^60,62,64Cr; deduced levels, J, π. Comparison with large-scale shell-model calculations in different model spaces. ⁹Be(⁷⁶Ge, X)⁶²Fe/⁶⁴Fe/⁶⁶Fe/⁶⁰Cr/⁶²Cr/⁶⁴Cr/⁶⁵Mn/⁶⁶Mn/⁶⁷Fe/⁶⁹Co, E=130 MeV/nucleon; measured yields of secondary ion beams.

doi: 10.1103/PhysRevC.81.051304