Phys.Rev. C 100, 041301 (2019)

R.Elder, H.Iwasaki, J.Ash, D.Bazin, P.C.Bender, T.Braunroth, B.A.Brown, C.M.Campbell, H.L.Crawford, B.Elman, A.Gade, M.Grinder, N.Kobayashi, B.Longfellow, A.O.Macchiavelli, T.Mijatovic, J.Pereira, A.Revel, D.Rhodes, J.A.Tostevin, D.Weisshaar

Intruder dominance in the 0⁺₂ state of ³²Mg studied with a novel technique for in-flight decays

NUCLEAR REACTIONS ⁹Be(³⁴Si, ³²Mg), (³⁴Si, ³¹Mg), E=86 MeV/nucleon, [secondary ³⁴Si beam from ⁹Be(⁴⁸Ca, X), E=140 MeV/nucleon and separated using A1900 fragment separator at NSCL-MSU]; measured reaction products identified by time-of-flight and energy-loss measurements using the S800 spectrograph, Eγ, Iγ, (particle)γ-coin, level half-life for the first excited 0+ state using GRETINA array. ³²Mg; deduced levels, excited 0+ level, B(E2) for excited 0+ to the first 2+ state. Comparison with B(E2) values for the first 2+ and excited 0+ states in ^30,32Mg and ³⁴Si. New method to study isomeric states decaying in-flight. Discussed collective behavior of the first excited 0+ state in ³²Mg. ³¹Mg; deduced levels, isomer half-life.

doi: 10.1103/PhysRevC.100.041301