Abstract
In classical field theory, radiation does not reflect off of reflectionless kinks. In quantum field theory, radiation quanta, called mesons, can be reflected. We provide a general analytical formula for the leading order amplitude and probability for the elastic scattering of mesons off of reflectionless quantum kinks. In the case of the Sine-Gordon model we verify that, due to a cancellation of six contributing processes, our general formula yields an amplitude of zero, as is required by integrability.
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JE is supported by NSFC MianShang grants 11875296 and 11675223.
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Evslin, J., Liu, H. Elastic Kink-Meson scattering. J. High Energ. Phys. 2024, 72 (2024). https://doi.org/10.1007/JHEP04(2024)072
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DOI: https://doi.org/10.1007/JHEP04(2024)072