Phys.Rev. C 100, 014307 (2019)

T.Shizuma, M.Omer, R.Hajima, N.Shimizu, Y.Utsuno

Spin and parity determination of the 3.004-MeV level in ²⁷Al: Its low-lying multiplet structure

NUCLEAR REACTIONS ²⁷Al(polarized γ, γ'), E=2900-3100 quasimonochromatic, linearly polarized photon beam from the TUNL High Intensity γ-ray Source (HIγS); measured Eγ, Iγ, azimuthal asymmetry and γ-ray angular distributions. ²⁷Al; deduced levels, J and π of 2.982- and 3.004-MeV levels, multipolarity and mixing ratio of γ transition, Γ₀, integrated cross section, and B(E2) for 3.004-MeV level. Comparisons with Monte-Carlo shell model calculations, and with previous measurements.

doi: 10.1103/PhysRevC.100.014307