Unitarity and unstable-particle scattering amplitudes

HIGHLIGHTS

• who: Katsuki Aoki from the Center for GravitationalKyoto University, Kyoto, Japan have published the research: Unitarity and unstable-particle scattering amplitudes, in the Journal: (JOURNAL) of 27/03/2023
• what: S-MATRIX THEORY For simplicity, the authors focus on a theory composed of a stable scalar field u03c6 with the mass u03bc and an unstable scalar field A with the pole mass M in four dimensions. In Appendix B the authors show that the analytic structure of the triangle Feynman diagram indeed depends on the positions of s12 and s45.

SUMMARY

 



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