TY - JOUR
T1 - New measurement of the electron magnetic moment using a one-electron quantum cyclotron
AU - Odom, B.
AU - Hanneke, D.
AU - D'urso, B.
AU - Gabrielse, G.
PY - 2006
Y1 - 2006
N2 - A new measurement resolves cyclotron and spin levels for a single-electron quantum cyclotron to obtain an electron magnetic moment, given by g/2=1.00115965218085(76)[0.76ppt]. The uncertainty is nearly 6 times lower than in the past, and g is shifted downward by 1.7 standard deviations. The new g, with a quantum electrodynamics (QED) calculation, determines the fine structure constant with a 0.7 ppb uncertainty-10 times smaller than for atom-recoil determinations. Remarkably, this 100 mK measurement probes for internal electron structure at 130 GeV.
AB - A new measurement resolves cyclotron and spin levels for a single-electron quantum cyclotron to obtain an electron magnetic moment, given by g/2=1.00115965218085(76)[0.76ppt]. The uncertainty is nearly 6 times lower than in the past, and g is shifted downward by 1.7 standard deviations. The new g, with a quantum electrodynamics (QED) calculation, determines the fine structure constant with a 0.7 ppb uncertainty-10 times smaller than for atom-recoil determinations. Remarkably, this 100 mK measurement probes for internal electron structure at 130 GeV.
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U2 - 10.1103/PhysRevLett.97.030801
DO - 10.1103/PhysRevLett.97.030801
M3 - Article
C2 - 16907490
AN - SCOPUS:33746043357
SN - 0031-9007
VL - 97
JO - Physical Review Letters
JF - Physical Review Letters
IS - 3
M1 - 030801
ER -