Title :
Fine structure constant derived from the electron g-2 with the QED theory up to the tenth-order
Author :
Kinoshita, Toichiro
Author_Institution :
Lab. for Elementary Particle Phys., Cornell Univ., Ithaca, NY, USA
Abstract :
This paper reports an improved value of the fine structure constant α derived from the measurement of the electron magnetic moment and the theoretical calculation in QED up to the tenth order. The preliminary result of the new evaluation is α-1 (new) = 137.035 999 173 3 (344) [0.251 ppb].
Keywords :
constants; elementary particle magnetic moment; fine structure; quantum electrodynamics; QED theory; electron g-2; electron magnetic moment; fine structure constant; Electrodynamics; Elementary particles; Laboratories; Magnetic moments; Measurement uncertainty; Standards; Uncertainty; Measurement uncertainty; anomalous magnetic moment; electron; fine structure constant; precision measurement;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250892
