About
We explore constraints on low-energy dynamics which stem from assuming causality of 2->2 scattering at all energy scales. I will review a key ingredient added recently: low-energy crossing symmetry, which bounds the couplings of spinning heavy states and ensures that sum rules are dominated by (unknown) states of low spin. Gravity is special since its tree-level energy growth already requires a UV completion. This implies roughly that gravity is attractive at all scales. I describe model-independent constraints which exploit low-energy crossing to account for the graviton pole..
0:00:00 Slide 1
0:05:07 Slide 2
0:10:13 Slide 3
0:15:19 Slide 4
0:20:25 Slide 5
0:25:31 Slide 6
0:30:37 Slide 7
0:35:43 Slide 8
0:40:49 Slide 9
0:45:55 Slide 10
The talk
Credits and licence
- Institution
- CERN
- Department
- Conferences & Workshops
- Speaker
- Simon Caron-Huot
- Year
- 2021
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed