Phys.Rev. C 92, 024315 (2015)

T.W.Henry, M.A.Bentley, R.M.Clark, P.J.Davies, V.M.Bader, T.Baugher, D.Bazin, C.W.Beausang, J.S.Berryman, A.M.Bruce, C.M.Campbell, H.L.Crawford, M.Cromaz, P.Fallon, A.Gade, J.Henderson, H.Iwasaki, D.G.Jenkins, I.Y.Lee, A.Lemasson, S.M.Lenzi, A.O.Macchiavelli, D.R.Napoli, A.J.Nichols, S.Paschalis, M.Petri, F.Recchia, J.Rissanen, E.C.Simpson, S.R.Stroberg, R.Wadsworth, D.Weisshaar, A.Wiens, C.Walz

Triplet energy differences and the low lying structure of ⁶²Ga

NUCLEAR REACTIONS ⁹Be(⁶⁴Ga, ⁶²Ga), (⁶⁵Ge, ⁶²Ga), E not given, [secondary ⁶⁴Ga and ⁶⁵Ge beams extracted using A1900 separator from ⁹Be(⁷⁸Kr, X), E=150 MeV/nucleon primary reaction]; measured Eγ, Iγ, ⁶²Ga particle spectra, (⁶²Ga)γ-, γγ-coin using Gamma-Ray Energy Tracking In-Beam Nuclear Array (GRETINA) for γ rays and S800 spectrograph and cathode readout drift chambers for particles at NSCL-MSU facility. ⁶²Ga; deduced levels populated by 2n and 1p2n knockout reactions, J, π, isospin using triplet energy differences (TED) as guide. Comparison with shell-model predictions of low lying T=0 and T=1 states using ANTOINE and LNPS interactions. Cross section calculations for the knockout process.

COMPILATION A=22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 74; reviewed systematics of triplet energy differences (TED) for the known T=1, 2+ states.

doi: 10.1103/PhysRevC.92.024315