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Eighth-order anomalous magnetic moment of the electron

Journal Article · · Phys. Rev. Lett.; (United States)
A very preliminary value (-0.8 +- 2.5)(..cap alpha../..pi..)/sup 4/ is reported for the complete eighth-order QED contribution to the electron anomalous magnetic moment. The large error reflects the difficulty in evaluating the huge integrals involved and will be reduced in the future. Theory and experiment agree within 2 standard deviations. The current result enables one to determine, in a manner based solely upon elementary-particle physics, the fine-structure constant ..cap alpha.. to an accuracy of 0.08 ppm.
Research Organization:
Newman Laboratory of Nuclear Studies, Cornell University, Ithaca, New York 14853
OSTI ID:
5879185
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 47:22; ISSN PRLTA
Country of Publication:
United States
Language:
English