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Integrability and scattering amplitudes
2015Solving interacting quantum (field) theories exactly for all values of the coupling constant, and not just for very small coupling constant where perturbation theory is applicable, is a long-standing open problem of theoretical physics. By exactly solving we mean diagonalising the corresponding Hamiltonian, such that both eigenstates and eigenvalues ...
Martin Ammon, Johanna Erdmenger
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Inelastic Scattering Amplitudes
AIP Conference Proceedings, 1973New results from inelastic two‐body scattering reactions are reviewed. Although predictions of SU(3), factorization and simple Regge theory are found to be qualitatively in agreement with the data, direct channel or absorption effects afford the simplest interpretation of the detailed features of the scattering amplitudes.
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Introduction to scattering amplitudes
2019Abstract This chapter covers the new on-shell methods that have been developed over the past twenty years for computing scattering amplitudes in quantum field theory. These methods break free from the traditional approach of Feynman diagrams.
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THE ANALYTIC BEHAVIOUR OF THE SCATTERING AMPLITUDE
The Quarterly Journal of Mathematics, 1962openaire +3 more sources