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