Rigorous Bounds on the Analytic S Matrix

Andrea Guerrieri, Amit Sever

Research output: Contribution to journalArticlepeer-review


We consider a dual S-matrix bootstrap approach in d≥3 space-time dimensions which relies solely on the rigorously proven analyticity, crossing, and unitarity properties of the scattering amplitudes. As a proof of principle, we provide rigorous upper and lower numerical bounds on the quartic coupling for the scattering of identical scalar particles in four dimensions.

Original languageEnglish
Article numberA44
JournalPhysical Review Letters
Issue number25
StatePublished - 17 Dec 2021


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