Phys.Rev. C 97, 024326 (2018)

K.Hadynska-Klek, for the AGATA Collaboration

Quadrupole collectivity in ⁴²Ca from low-energy Coulomb excitation with AGATA

NUCLEAR REACTIONS ¹⁹⁷Au, ²⁰⁸Pb(⁴²Ca, ⁴²Ca'), E=170 MeV from Tandem XPU accelerator at INFN-LNL, Legnaro; measured Eγ, Iγ, (scattered ⁴²Ca)γ-coin, γγ-coin, γ-ray yields and Coulomb excitation σ, σ(θ) using AGATA array for γ rays and DANTE array for particles. ⁴²Ca; deduced levels, E2 and M1 matrix elements, and diagonal E2 matrix elements from GOSIA analysis of Coulomb excitation yields, B(E2), B(M1), spectroscopic quadrupole moments for the first and second 2+ states. Comparisons with previous experimental results, and with large-scale shell-model (SM), beyond-mean-field (BMF) calculations, and with α+³⁸Ar orthogonality condition model (OCM) predictions.

NUCLEAR REACTIONS ¹²C(³²S, 2p), E=80 MeV; measured Eγ, Iγ, γγ-coin using EAGLE array of 15 Compton-suppressed HPGe detectors at the Heavy Ion Laboratory, University of Warsaw. ⁴²Ca; deduced levels.

RADIOACTIVITY ^42,42mSc(β⁺)[from ¹²C(³²S, np), E=80 MeV]; measured Eγ, Iγ, γγ-coin. ⁴²Ca; deduced levels, γ-branching ratios.

doi: 10.1103/PhysRevC.97.024326