Massive twistor worldline in electromagnetic fields

Massive twistor worldline in electromagnetic fields

Blog Article

Abstract We study the (ambi-)twistor model for spinning particles interacting via electromagnetic field, as a toy model for studying classical dynamics of gravitating bodies including effects of both spins to all orders.We compute the Baby Feet Necklace With Birthstone momentum kick and spin kick up to one-loop order and show precisely how they are encoded in the classical eikonal.The all-orders-in-spin effects are encoded as a dynamical implementation of the Newman-Janis shift, and we find that the expansion in both spins can be resummed to simple expressions in special kinematic configurations, at least Accessories up to one-loop order.We confirm that the classical eikonal can be understood as the generator of canonical transformations that map the in-states of a scattering process to the out-states.We also remark that cut contributions for converting worldline propagators from time-symmetric to retarded amount to the iterated action of the leading eikonal at one-loop order.