Revisiting soliton contributions to perturbative amplitudes
It is often said that soliton contributions to perturbative processes in QFT are exponentially suppressed by a form factor. We provide a derivation of this form factor by studying the soliton-antisoliton pair production amplitude for a class of scalar theories with generic soliton moduli. This reduces to the calculation of a matrix element in the quantum mechanics on the soliton moduli space. We investigate the conditions under which the latter leads to suppression. Extending this framework to instanton-solitons in five-dimensional Yang-Mills theory leaves open the possibility that such contributions will not be suppressed.
Papageorgakis, C., Royston, A.B. Revisiting soliton contributions to perturbative amplitudes. J. High Energ. Phys. 2014, 128 (2014). https://doi.org/10.1007/JHEP09(2014)128
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Work Title | Revisiting soliton contributions to perturbative amplitudes |
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License | CC BY 4.0 (Attribution) |
Work Type | Article |
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Publication Date | September 23, 2014 |
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Deposited | January 22, 2024 |
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