Hfs of the $5 P_{\frac{1}{2}}$ State of ${In}^{115}$ and ${In}^{113}$ : Hfs Anomalies in the Stable Isotopes of Indium

The hfs splittings of the

5 {}^{2}P_{\frac{1}{2}}

states of

{In}^{115}

and

{In}^{113}

have been measured by the atomic-beam magnetic-resonance method. We find:

Δ ν ({In}^{115}) = [11 409.7506 \pm (20)] \times 10^{6} invsec,

Δ ν ({In}^{113}) = [11 385.4300 \pm (20)] \times 10^{6} invsec .

A comparison of the ratio of the dipole coupling constants of the two isotopes in the

P_{\frac{1}{2}}

state and in the

P_{\frac{3}{2}}

state with the ratio of the nuclear

g_{I}

factors yields the following hfs anomalies:

Δ_{\frac{1}{2}} = (7.5 \pm 1.3) \times 10^{- 6}, Δ_{\frac{3}{2}} = - (23.8 \pm 1.3) \times 10^{- 6} .

The fractional change in the nuclear radius between

{In}^{113}

and

{In}^{115}

\frac{δ R}{R}

, is found to be 3.66×

10^{- 3}

as compared to 5.85×

10^{- 3}

calculated on the assumption of an incompressible nucleus.

This publication has 17 references indexed in Scilit:

Hfs of the5P122State ofIn115andIn113: Hfs Anomalies in the Stable Isotopes of Indium