# Understanding the NLO Scattering Waveform: Soft Limit and Post-Newtonian Expansion

- Institution: CERN
- Department: Conferences, Workshops & Schools
- Speaker: Fei Teng
- Year: 2023
- Language: English
- Source: [CERN](https://videos.cern.ch/record/2302752)
- 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 present the full NLO scattering waveform computed from the observable based formalism. The waveform satisfies the universal soft theorem up to the NNLO. I will end the talk by comparing the result with that computed from the Multipolar-Post-Minkowskian formalism, which requires a rotation of the incoming center-of-mass frame to align with that at the minimal approach..

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## Lectures

1. [Understanding the NLO Scattering Waveform: Soft Limit and Post-Newtonian Expansion](https://invisiblenetwork.ai/learn/cern/2302752/664acc90846f), 33 min (CERN's player)