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arXiv · hep-ph/0204048

Forward Compton Scattering, using Real Analytic Amplitudes

M. M. Block
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Abstract

We analyze forward Compton scattering, using real analytic amplitudes. By fitting the total γp scattering cross section data in the high energy region 5 GeV < \sqrt s < 20 GeV, using a cross section rising as \ln^2 s, we calculate ρ_{γp}, the ratio of the real to the imaginary portion of the the forward Compton scattering amplitude, and compare this to ρ_{nn}, the ratio of the even portions of the pp and p-bar p forward scattering amplitudes. We find that the two ρ-values are, within errors, the same in the c.m.s. energy region 5 GeV < \sqrt s < 200 GeV, as predicted by a factorization theorem of Block and Kadailov.

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M. M. Block. 2002-04-22. Forward Compton Scattering, using Real Analytic Amplitudes. https://doi.org/10.1103/physrevd.65.116005

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