Phys.Rev.Lett. 115, 042501 (2015)

J.Zhang, M.Tandecki, R.Collister, S.Aubin, J.A.Behr, E.Gomez, G.Gwinner, L.A.Orozco, M.R.Pearson, G.D.Sprouse for the FrPNC collaboration

Hyperfine Anomalies in Fr: Boundaries of the Spherical Single Particle Model

NUCLEAR MOMENTS ^{206,207,209,213,221}Fr; measured fluorescence light, sideband frequency; deduced hyperfine splitting of the 7P_1/2 state. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.115.042501