Phys.Rev. C 93, 024316 (2016)

D.Suzuki, H.Iwasaki, D.Beaumel, M.Assie, H.Baba, Y.Blumenfeld, F.de Oliveira Santos, N.de Sereville, A.Drouart, S.Franchoo, J.Gibelin, A.Gillibert, S.Giron, S.Grevy, J.Guillot, M.Hackstein, F.Hammache, N.Keeley, V.Lapoux, F.Marechal, A.Matta, S.Michimasa, L.Nalpas, F.Naqvi, H.Okamura, H.Otsu, J.Pancin, D.Y.Pang, L.Perrot, C.M.Petrache, E.Pollacco, A.Ramus, W.Rother, P.Roussel-Chomaz, H.Sakurai, J.-A.Scarpaci, O.Sorlin, P.C.Srivastava, I.Stefan, C.Stodel, Y.Tanimura, S.Terashima

Second 0⁺ state of unbound ¹²O: Scaling of mirror asymmetry

NUCLEAR REACTIONS ¹H(¹⁴O, t), E=51 MeV/nucleon, [¹⁴O secondary beam from ⁹Be(¹⁶O, X), E=90 MeV/nucleon primary reaction]; measured E(t), I(t), σ(θ), TKE versus θ(lab) using LISE spectrometer and MUST2 telescopes at GANIL. Missing-mass spectroscopy. ¹²O; deduced levels, J, π, L-transfers, two-proton decay width. Comparison of the second 0+ state of ¹²O to the mirror state in ¹²Be and theoretical predictions. Systematics of 0+ states in mirror nuclei pairs of ⁶Be-⁶He, ⁸C-⁸He, ¹⁰C-¹⁰Be, ¹²O-¹²Be, ¹⁴O-¹⁴C, ¹⁶Ne-¹⁶C, ¹⁸Ne-¹⁸O, ²⁰Mg-²⁰O, ²²Mg-²²Ne, ²⁴Si-²⁴Ne, ²⁶Si-²⁶Mg, ²⁸S-²⁸Mg, ³⁰S-³⁰Si, ³²Ar-³²Si, ³⁴Ar-³⁴S, ³⁶Ca-³⁶S, ³⁸Ca-³⁸Ar, ⁴⁰Ti-⁴⁰Ar, ⁴²Ti-⁴²Ca, ⁴⁶Cr-⁴⁶Ti, ⁴⁸Ni-⁴⁸Ca, ⁵⁰Fe-⁵⁰Cr, ⁵⁴Zn-⁵⁴Cr, ⁵⁴Ni-⁵⁴Fe and ⁵⁸Zn-⁵⁸Ni. Discussed importance of scaling of mirror asymmetry in the context of ab initio calculations near the drip lines.

doi: 10.1103/PhysRevC.93.024316