92 citations · 103 across the 4 of their papers we have counts for
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order of the polarization operator in Coulomb field at low energy
G. G. Kirilin, R. N. Lee
We derive the low-energy expansion of and terms of the polarization operator in the Coulomb field. Physical applications such as the low-energy Delbrück sca…
Group structure of the integration-by-part identities and its application to the reduction of multiloop integrals
R. N. Lee
The excessiveness of integration-by-part (IBP) identities is discussed. The Lie-algebraic structure of the IBP identities is used to reduce the number of the IBP equations to be co…
Analytical calculation of Coulomb corrections to pair production at intermediate photon energies
R. N. Lee, A. I. Milstein, V. M. Strakhovenko
First correction to the high-energy asymptotics of the total photoproduction cross section in the electric field of a heavy atom is obtained with the exact account of this…
Simple analytical representation for the high-energy Delbruck scattering amplitudes
R. N. Lee, A. I. Milstein, V. M. Strakhovenko
Using a new representation for the quasiclassical Green function of the Dirac equation in a Coulomb field, analytical expressions for the high-energy small-angle Delbrück scatterin…
Large Coulomb corrections in high-energy photon splitting
R. N. Lee, A. I. Milstein, V. M. Strakhovenko
The Coulomb corrections to the helicity amplitudes of high-energy photon splitting are examined. The consideration is based on the amplitudes obtained exactly in the parameter Zαwi…
High-energy photon splitting in a strong Coulomb field
R. N. Lee, A. I. Milstein, V. M. Strakhovenko
The helicity amplitudes of the high-energy photon splitting in the external Coulomb field are obtained exactly in the parameter $\al$. The cases of screened and unscreened potentia…