Gravitational/electromagnetic conversion scattering on fixed charges in the Born approximation
Por:
Breuer R.A., Rosenbaum M., Ryan Jr. M.P., Matzner R.A.
Publicada:
1 ene 1981
Resumen:
In the presence of nonzero background electromagnetic and gravitational fields, perturbations in these fields are coupled, via the Einstein-Maxwell equations. We investigate the differential cross section for the conversion scattering of electromagnetic to gravitational radiation (and vice versa) on fixed charged masses. Our procedure uses a Born approximation at the level of accuracy in which the horizon structure of putative black holes is lost; our fixed charges therefore represent charged black holes at this order. We find conversion differential cross sections of the order of Ge2 (G is Newton's gravitational constant, e is the value of the charge), with angular polarization factors, and with a forward-divergent behavior sin-2(2). The divergence is shown to arise not only in the Born approximation, but to be implicit in the known behavior of the large-angular-momentum phase shifts for the partial-wave spherical modes. © 1981 The American Physical Society.
Filiaciones:
Breuer R.A.:
Centro de Estudios Nucleares, Universidad Nacional Autonoma de Mexico, Mexico
Max-Planck-Institut fur Plasma-physik, D-8046 Garching 6, Manchen, Germany
Rosenbaum M.:
Centro de Estudios Nucleares, Universidad Nacional Autonoma de Mexico, Mexico
Ryan Jr. M.P.:
Centro de Estudios Nucleares, Universidad Nacional Autonoma de Mexico, Mexico
Matzner R.A.:
Center for Relativity, University of Texas, Austin, TX 78712
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