New Regularization-Renormalization Method in Quantum Electrodynamics and Qualitative Calculation on Lamb Shift

Details New Regularization-Renormalization Method in Quantum Electrodynamics and Qualitative Calculation on Lamb Shift New Regularization-Renormalization Method in Quantum Electrodynamics and Qualitative Calculation on Lamb Shift

1997-08-25

arxiv.org/abs/hep-ph/9708457v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, no figures

Scientific paper

A simple but effective method for regularization-renormalization (R-R) is proposed for handling the Feynman diagram integral (FDI) at one loop level in quantum electrodynamics (QED). The divergence is substituted by some constants to be fixed via experiments. So no counter term, no bare parameter and no arbitrary running mass scale is involved. Then the Lamb Shift in Hydrogen atom can be calculated qualitatively and simply as $\Delta E(2S_{1/2})- \Delta E(2P_{1/2})=996.7 MHz$ versus the experimental value $1057.85 MHz$.

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