Phys.Rev. C 73, 054306 (2006)

T.C.Li, N.Pietralla, A.P.Tonchev, M.W.Ahmed, T.Ahn, C.Angell, M.A.Blackston, A.Costin, K.J.Keeter, J.Li, A.Lisetskiy, S.Mikhailov, Y.Parpottas, B.A.Perdue, G.Rainovski, W.Tornow, H.R.Weller, Y.K.Wu

First evidence for spin-flip M1 strength in ⁴⁰Ar

NUCLEAR REACTIONS ⁴⁰Ar(polarized γ, γ'), E=7.7-11 MeV; measured Eγ, Iγ, asymmetry. ⁴⁰Ar deduced levels, J, π, excitation B(E1), B(M1), spin-flip M1 strength. Comparison with shell model predictions.

doi: 10.1103/PhysRevC.73.054306