Phys.Rev. C 90, 034301 (2014)

S.R.Stroberg, A.Gade, J.A.Tostevin, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, B.A.Brown, C.M.Campbell, K.W.Kemper, C.Langer, E.Lunderberg, A.Lemasson, S.Noji, F.Recchia, C.Walz, D.Weisshaar, S.J.Williams

Single-particle structure of silicon isotopes approaching ⁴²Si

NUCLEAR REACTIONS ⁹Be(³⁶Si, ³⁵Si), (³⁶Si, ³⁵Al), E=97.7 MeV/nucleon; ⁹Be(³⁸Si, ³⁷Si), (³⁸Si, ³⁷Al), E=86 MeV/nucleon; ⁹Be(⁴⁰Si, ³⁹Si), (⁴⁰Si, ³⁹Al), E=79 MeV/nucleon, [secondary beams of ^36,38,40Si produced in ⁹Be(⁴⁸Ca, X), E=140 MeV/nucleon primary reaction]; measured Doppler-shifted γ-ray spectra, Eγ, Iγ, γγ-, (residue)γ-coin, (³⁶Si)γ-coin using GRETINA array for γ detection and ionization chamber and plastic scintillators in the focal plane of S800 spectrograph at NSCL-MSU facility. ^35,37,39Al, ^35,37,39Si; deduced levels, J, π, parallel momentum distributions, l-values. ^36,38,40Si; one-neutron and one-proton total and partial knockout σ, single-particle structure, and enhanced collectivity in the region of ⁴²Si. Eikonal model analysis of parallel momentum distributions. Comparison with large-scale shell model calculations.

NUCLEAR STRUCTURE ^35,37,39Al, ^35,37,39Si; calculated levels, J, π using large-scale shell model with SDPF-U and SDPF-MU interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.90.034301