Conservative binary dynamics beyond order $\alpha^5$ in electrodynamics
Conservative binary dynamics beyond order $\alpha^5$ in electrodynamics
We compute the conservative scattering angle of two classical charged particles at the sixth order in electromagnetic coupling, and at the fourth order in velocity, thereby going beyond the current state of the art [fifth order in coupling, derived by Bern {\it et al.}, Phys. Rev. Lett. \textbf{132}, 251601 (2024)]. …