# No EFT for massive higher spins

- Institution: CERN
- Department: Conferences, Workshops & Schools
- Speaker: Francesco Riva
- Year: 2023
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3001054)
- 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)

Massive resonances with spin larger or equal 2 are ubiquitous in physics, but their mass is always larger than their inverse size (the EFT cutoff). I will show that this condition follows from the requirement that the underlying theory be unitary and causal..

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## Lectures

1. [No EFT for massive higher spins](https://invisiblenetwork.ai/learn/cern/3001054/5dc97369021a), 34 min (CERN's player)