Delbrück scattering

Papatzacos, Paul; Mork, K. J.

doi:10.1016/0370-1573(75)90048-4

Cited by 81 publications

(82 citation statements)

References 75 publications

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“…Photon scattering in the electric field of atoms (Delbrück scattering) has been investigated in detail both theoretically and experimentally [1,2,3,4]. Recently, an essential progress in the understanding of the photon splitting process in an atomic electric field was achieved [5,6] and the first successful observation of photon splitting was performed [7].…”

Section: Introductionmentioning

confidence: 99%

Photon splitting in a laser field

2007

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Photon splitting due to vacuum polarization in a laser field is considered. Using an operator technique, we derive the amplitudes for arbitrary strength, spectral content and polarization of the laser field. The case of a monochromatic circularly polarized laser field is studied in detail and the amplitudes are obtained as three-fold integrals. The asymptotic behavior of the amplitudes for various limits of interest are investigated also in the case of a linearly polarized laser field. Using the obtained results, the possibility of experimental observation of the process is discussed.

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Section: Introductionmentioning

confidence: 99%

Photon splitting in a laser field

2007

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“…where k 1 = (ω, k 1 ), k 2 = (ω, k 2 ) are the 4-momenta of the photon in the initial and final states, correspondingly, ǫ (1,2) are the polarization vectors, the 4-vector n is defined as k 1 · n = k 2 · n = ω, f 1 and f 2 are the form factors to be calculated. The main purpose of this article is to calculate lim |k|→0 f 1,2 (0, k, k, Z).…”

Section: Delbrück Scattering Amplitudementioning

confidence: 99%

“…(7) and (8) yields the relation between Π (ii) , Π (00) and the form factors f (1,2) : The diagrams of the second order of the perturbation theory in Zα are depicted in Fig. 1.…”

Section: Delbrück Scattering Amplitudementioning

confidence: 99%

Coulomb corrections to the Delbrück scattering amplitude at low energies

Kirilin

Terekhov

2008

Phys. Rev. A

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In this article, we study the Coulomb corrections to the Delbrück scattering amplitude. We consider the limit when the energy of the photon is much less than the electron mass. The calculations are carried out in the coordinate representation using the exact relativistic Green function of an electron in a Coulomb field. The resulting relative corrections are of the order of a few percent for scattering on for a large charge of the nucleus. We compare the corrections with the corresponding ones calculated through the dispersion integral of the pair production cross section and also with the magnetic loop contribution to the g-factor of a bound electron. The last one is in a good agreement with our results but the corrections calculated through the dispersion relation are not.

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“…It will also be assumed that the photon energy will be in the X-ray range so that only the electrons interact with the photons. The nuclear Thomson, nuclear resonance scattering and Delbriick scattering processes are neglected here; for review articles on these processes see, for example, Hayward et al (1974) and Papatzacos and Mork (1975).…”

Section: (B) Nonrelativistic Quantum Mechanical Models Lor Photon Scamentioning

confidence: 99%

Theoretical and Experimental Techniques for the Determination of X-ray Anomalous Dispersion Corrections

Creagh¹

1985

Aust. J. Phys.

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Aust. J. Phys., 1985,38, 371-404 Theoretical and experimental techniques for the determination of the X-ray anomalous dispersion corrections f'(w, LI) and fl/(w, LI) are discussed. The results of experiments on metallic, ionic and covalently bonded materials typified by copper and nickel, lithium fluoride, and silicon respectively are compared with the theoretical predictions. Attention is drawn to deficiencies in both the experimental and the theoretical approaches.

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Delbrück scattering

Cited by 81 publications

References 75 publications

Photon splitting in a laser field

Photon splitting in a laser field

Coulomb corrections to the Delbrück scattering amplitude at low energies

Theoretical and Experimental Techniques for the Determination of X-ray Anomalous Dispersion Corrections

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