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RESEARCH PRODUCT
Polarizability effects in electronic and muonic atoms
Torleif Erik Oskar EricsonJose Bernabeusubject
PhysicsNuclear and High Energy PhysicsMomentum transferCompton scatteringFísicaElementary particleDiscrete dipole approximationPolarizabilityQuantum electrodynamicsQuantum mechanicsSum rule in quantum mechanicsLimit (mathematics)Nuclear PhysicsLeptondescription
TheS state polarizability shifts are derived from the virtual forward Compton scattering in the unretarded dipole approximation. In the non-relativistic limit ω N /2m≪1, the shift is proportional to the photonuclear sum rule σ−3/2, while in the relativistic limit ω N /2m≫1 it is proportional to a logarithmically weighted σ−2 sum rule. In both cases, the characteristic momentum transfer is (2mω N )1/2. The non-locality from the intermediate lepton propagation removes the divergence typical of the static limit. Explicit formulas for the shifts are given for both the relativistic and non-relativistic limits.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1983-01-01 | Zeitschrift f�r Physik A Atoms and Nuclei |