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Comment on the scaling behavior of Delbrück amplitudes

1983; American Physical Society; Volume: 27; Issue: 8 Linguagem: Inglês

10.1103/physrevd.27.1962

1538-4500

P. Rullhusen, U. Zurmühl, F. Smend, M. Schumacher, Hans G. Börner, S. A. Kerr,

Quantum Chromodynamics and Particle Interactions

We compare the scaling behavior of Delbr\"uck amplitudes recently predicted by Cheng, Tsai, and Zhu with calculated lowest-order amplitudes and with empirical Coulomb-correction terms. The scaling behavior is confirmed for the lowest-order amplitudes at energies above 6 MeV and large scattering angles. The Coulomb-correction terms do not show the scaling behavior at least below energies of 10 MeV.