Phys.Rev. C 108, L061301 (2023)

T.Beck, A.Gade, B.A.Brown, J.A.Tostevin, D.Weisshaar, D.Bazin, K.W.Brown, R.J.Charity, P.J.Farris, S.A.Gillespie, A.M.Hill, J.Li, B.Longfellow, W.Reviol, D.Rhodes

Probing proton cross-shell excitations through the two-neutron removal from ³⁸Ca

NUCLEAR REACTIONS ⁹Be(³⁸Ca, ³⁶Ca), E=60.9 MeV/nucleon; measured reaction products, Eγ, Iγ, γγ-coin, (particle)γ-coin; deduced inclusive and exclusive 2n-removal σ, parallel momentum distribution. ³⁶Ca; deduced levels, J, π, B(E2), spectroscopic factors. Comparison to eikonal reaction theory with shell-model two-nucleon amplitudes using ZBM2, USDB, USDC interactions and experimental data. GRETINA array of 12 modules of 36-fold segmented HPGe detectors and S800 spectrograph at Coupled Cyclotron Facility (NSCL-MSU).

doi: 10.1103/PhysRevC.108.L061301