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Conference Paper

Massive twistor worldline in electromagnetic fields

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Kim,  Jung-Wook
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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ICHEP2024_790.pdf
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Citation

Kim, J.-W. (2024). Massive twistor worldline in electromagnetic fields. In Proceedings of Science, Volume 476. 42nd International Conference on High Energy Physics (ICHEP2024) - Formal Theory. doi:10.22323/1.476.0790.


Cite as: https://hdl.handle.net/21.11116/0000-0010-8930-D
Abstract
The (ambi-)twistor model for spinning particles interacting via electromagnetic field is studied as a toy model for studying classical dynamics of gravitating bodies including effects of both spins to all orders. The all-orders-in-spin effects are encoded as a dynamical implementation of the Newman-Janis shift. It is found that the expansion in both spins can be resummed to simple expressions in special kinematic configurations, at least up to next-to-leading order. It is also observed that cutting rules associated with causality prescription for worldline propagators can be viewed as Poisson brackets of subdiagrams.