Time Ordered Operator Products and the Scattering Matrix in P(⌽) 2 Models
It has been known for more than two years now that weakly coupled P (⌽)2 models have an isolated one particle hyperboloid and hence by the Haag-Ruelle theory they possess a well defined scattering matrix.
KeywordsAnalytic Continuation Vacuum Expectation Mass Shell Invariant Domain Wightman Function
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