Positivity of the real part of the forward scattering amplitude
classification
✦ hep-ph
keywords
amplitudeenergyforwardpartrealscatteringabovecertain
read the original abstract
We prove the general theorem that the real part of the forward two-body scattering amplitude is positive at sufficiently high energies if, above a certain energy, the total cross section increases monotonically to infinity at infinite energy.
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