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Relativistic corrections to the electromagnetic polarizabilities of compound systems

R. N. Lee·A. I. Milstein·M. Schumacher
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Abstract

The low-energy amplitude of Compton scattering on the bound state of two charged particles of arbitrary masses, charges and spins is calculated. A case in which the bound state exists due to electromagnetic interaction (QED) is considered. The term, proportional to $ω^2$, is obtained taking into account the first relativistic correction. It is shown that the complete result for this correction differs essentially from the commonly used term $Δα$, proportional to the r.m.s. charge radius of the system. We propose that the same situation can take place in the more complicated case of hadrons.

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R. N. Lee, A. I. Milstein, M. Schumacher. 2001-01-22. Relativistic corrections to the electromagnetic polarizabilities of compound systems. https://doi.org/10.1103/physrevlett.87.051601

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