The Zeeman Effect of the Hyperfine Structure of Optically Excited Mercury Resonance Radiation

Abstract

Magnetic fields from 0 to 2000 gauss are applied to the mercury resonance line $\ensuremath{\lambda}2537$ A and the Zeeman patterns for the hyperfine structure determined. The results indicate close agreement with the explanation of Schuler and Keyston. The Paschen-Back effects for the hyperfine structure of the isotopes 199 and 201 are worked out and experimental evidence is offered in support of the hypothesis of Goudsmit and Bacher that the Zeeman effect for the hyperfine structure may be treated in the same manner as the Zeeman effect for the fine structure if the appropriate change in quantum numbers is made.