# 4PM Scattering of Spinning Black Holes and Neutron Stars

- Institution: CERN
- Department: Conferences, Workshops & Schools
- Speaker: Gustav Mogull
- Year: 2023
- Language: English
- Source: [CERN](https://videos.cern.ch/record/2302751)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

I will discuss our recent calculations of the observables (impulse, spin kick, scattering angle) involved in the scattering of two black holes or neutron stars at fourth post Minkowskian order (three-loop order) using the Worldline Quantum Field Theory (WQFT) framework. These 4PM observables now include both spin-orbit and adiabatic tidal corrections — inclusion of the latter necessitates a renormalization of the underlying classical effective field theory (EFT), with the addition of post-adiabatic counterterms and a corresponding renormalization group flow of the post-adiabatic Love numbers..

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## Lectures

1. [4PM Scattering of Spinning Black Holes and Neutron Stars](https://invisiblenetwork.ai/learn/cern/2302751/a7a25b7fbd9a), 28 min (CERN's player)