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arXiv · hep-ph/9508220

O(4) symmetric singular solutions and multiparticle cross sections in $ϕ^4$ theory at tree level

F. L. Bezrukov·M. V. Libanov·S. V. Troitsky
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Abstract

We solve the classical euclidean boundary value problem for tree-level multiparticle production in $ϕ^4$ theory at arbitrary energies in the case of $O(4)$ symmetric field configurations. We reproduce known low-energy results and obtain a lower bound on the tree cross sections at arbitrary energies.

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F. L. Bezrukov, M. V. Libanov, S. V. Troitsky. 1995-08-04. O(4) symmetric singular solutions and multiparticle cross sections in $ϕ^4$ theory at tree level. https://doi.org/10.1142/s0217732395002283

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