From FaddeevâKulish to LSZ. Towards a non-perturbative description of colliding electrons
In a low energy approximation of the massless Yukawa theory (Nelson model) we derive a FaddeevâKulish type formula for the scattering matrix of N electrons and reformulate it in LSZ terms. To this end, we perform a decomposition of the infrared finite Dollard modifier into clouds of real and virtual...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-12-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321317303486 |