
October 28, 2019
3:30 pm
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4:30 pm
4138 Physics Research Building
First I shall recall the historical developments of the S-matrix theory and point out how causality and analyticity of the scattering amplitude are related. The quantum field theoretic developments will be discussed without appealing to any model. I shall also derive the upper bound on total cross section, the Froissart bound, for asymptotic energies.