PIRSA:18010095

Rebooting the S-matrix bootstrap

Toledo, J. (2018). Rebooting the S-matrix bootstrap. Perimeter Institute. https://pirsa.org/18010095

Toledo, Jonathan. Rebooting the S-matrix bootstrap. Perimeter Institute, Feb. 08, 2018, https://pirsa.org/18010095 

          @misc{ pirsa_PIRSA:18010095,
            doi = {10.48660/18010095},
            url = {https://pirsa.org/18010095},
            author = {Toledo, Jonathan},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Rebooting the S-matrix bootstrap},
            publisher = {Perimeter Institute},
            year = {2018},
            month = {feb},
            note = {PIRSA:18010095 see, \url{https://pirsa.org}}
          }

Jonathan Toledo

BMO Financial Group

Talk number
PIRSA:18010095
Collection
Talk Type
Subject
Abstract

I will discuss constraints on the S-matrix of gapped, Lorentz invariant quantum field theories due to crossing symmetry, analyticity and unitarity.  In particular I will bound cubic couplings, quartic couplings and scattering lengths relevant for the elastic scattering amplitude of two identical scalar particles. After a warm-up in 1+1 dimensions I will move to 3+1 dimensions.  In the cases where the results can be compared with results in the older S-matrix literature they are in excellent agreement.