TY - GEN
T1 - New measurement of the electron magnetic moment and the fine structure constant
AU - Gabrielse, G.
AU - Hanneke, D.
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2006
Y1 - 2006
N2 - A new measurement resolves the cyclotron and spin levels for a single-electron quantum cyclotron to obtain a dimensionless electron magnetic moment, g, to 7.6 parts in 1013 (nearly six times better than in the past) and shifted 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 - ten 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 the cyclotron and spin levels for a single-electron quantum cyclotron to obtain a dimensionless electron magnetic moment, g, to 7.6 parts in 1013 (nearly six times better than in the past) and shifted 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 - ten times smaller than for atom-recoil determinations. Remarkably, this 100 mK measurement probes for internal electron structure at 130 GeV.
KW - Electron g value
KW - Electron magnetic moment
KW - Fine structure constant
KW - Quantum cyclotron
UR - http://www.scopus.com/inward/record.url?scp=33847007320&partnerID=8YFLogxK
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U2 - 10.1063/1.2402646
DO - 10.1063/1.2402646
M3 - Conference contribution
AN - SCOPUS:33847007320
SN - 0735403686
SN - 9780735403680
T3 - AIP Conference Proceedings
SP - 328
EP - 332
BT - INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS
T2 - INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS: 9th Conference on the Intersections of Particle and Nuclear Physics, CIPAN2006
Y2 - 30 May 2006 through 3 June 2006
ER -