Phys.Rev. C 100, 034306 (2019)

R.Lica, for the IDS Collaboration

Normal and intruder configurations in ³⁴Si populated in the β^- decay of ³⁴Mg and ³⁴Al

RADIOACTIVITY ³⁴Mg, ^34,34mAl(β^-), (β^-n)[from U(p, X), E=1 GeV pulsed beam from ISOLDE-CERN, followed by selective ionization using the RILIS technique, and A=34 separation using the ISOLDE General Purpose Separator]; measured Eγ, Iγ, Eβ, βγ-, γγ- and βγγ-coin, half-lives of decays of ³⁴Al and ^34mAl, half-life of excited 0+ state in ³⁴Si by β(E0)(t), deduced %β^-n or P_n. ³⁴Si; deduced levels, J, π, β feedings, logft, B(E2), configurations, intruder configurations, absence of triaxial deformation in ³⁴Si. Discussed Mixing between the first and second 0+ states in ³⁴Si. Comparison with large scale shell-model calculations using the SDPF-U-MIX interaction. Systematics of energies of 4- and 5- states in N=20, Z=14-20 even-even nuclei.

doi: 10.1103/PhysRevC.100.034306