## On Approximate Relativistic Wave Functions and Internal Pair FormationUnited States Atomic Energy Commission, Technical Information Service, 1950 - Nuclear physics - 9 pages |

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21 pole angle angular integration apparently APPENDIX approach APPROXIMATE RELATIVISTIC WAVE approximate wave functions attempts Born approximation calculation component correction Coulomb field Dirac equation Dirac first order Dirac plane wave divergent elec energy evaluate the matrix Evaluating the integral expansion expression four Dirac plane gamma grad Green Function higher order i-th Dirac plane improve infinite infinity Inserting INTEGRAL EQUATION OBTAINED internal pair formation involved Li(u linear M. E. Rose matrix elements method Multiplying notation nucleus operator order equation order of az orthogonality particle of momentum perform perturbation plane wave spinor positron and electron procedure radial integrals radiation field RELATIVISTIC WAVE FUNCTIONS remain finite respectively result right side satisfies the Dirac SECOND ORDER DIRAC second term side of Eq solution Sommerfeld Sommerfeld-Mary wave function terms of higher terms of order Theorem transition tron vector write zeroth order