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Title: High precision measurement of the muonium ground state hyperfine interval and the muon magnetic moment

Thesis/Dissertation ·
OSTI ID:5913746

The hfs interval of ground state muonium ..delta.. nu, and the ratio of the muon magnetic moment to that of the proton, ..mu../sub ..mu..//..mu../sub p/, have been measured with high precision by means of microwave magnetic resonance techniques at the Los Alamos Meson Physics Facility (LAMPF). Muonium was formed by stopping low momentum polarized positive muons in a resonant cavity containing Kr gas at 0.5 or 1 atm pressure. A strong static field at 13.6 kG was applied to split the four Zeeman levels in the ground state and the two transitions (designated 1..-->..2 and 3..-->..4) were induced by pulsing the microwave frequency between the two transition frequencies. The difference between nu/sub 34/ and nu/sub 12/ is directly related to the muon magnetic moment through known fundamental constants and yields the value. These are the most precise measurements of these quantities to date. In addition, the linear pressure shift coefficients of the two transitions have been determined. From the sum of these coefficients we find the fractional hfs pressure shift of muonium in Kr. The measured value of ..mu../sub ..mu..//..mu../sub p/ also yields the ratio of the mass of the muon to that of the electron.

Research Organization:
Yale Univ., New Haven, CT (USA)
OSTI ID:
5913746
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English