Constraint from Lamb Shift and Anomalous Magnetic Moment on Radiatively Induced Lorentz and CPT Violation in Quantum Electrodynamics
نویسنده
چکیده
We propose to adopt the precisely measured anomalous magnetic moment and Lamb shift as tests for the possible existence of the radiatively induced Lorentz and CPT violation effects in quantum electrodynamics. To this end we calculate the one-loop vacuum polarization tensor and vertex radiative correction in dimensional reduction and on-shell renormalization scheme. We then explicitly show how the Lorentz and CPT violation sector affects the anomalous magnetic moment and Lamb shift. We find that the high precision experimental data for the anomalous magnetic moment and Lamb shift may in principle provide unambiguous signals for possible Lorentz and CPT violation. PACS number(s): 11.10, 12.20, 11.15.B, 13.40.k
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