# YTF 20

15-16 December 2020
Centre for Particle Theory, Durham
Europe/London timezone

## Color/ Kinematics Duality in AdS$_4$

16 Dec 2020, 16:00
30m
Teams (Centre for Particle Theory, Durham)

### Teams

#### Centre for Particle Theory, Durham

IPPP & Dept. Mathematical Sciences Durham University South Road Durham DH1 3LE

### Speaker

Connor Armstrong (Durham University)

### Description

In flat space, the color/kinematics duality states that perturbative Yang-Mills amplitudes can be written in such a way that kinematic numerators obey the same Jacobi relations as their color factors. This property leads to the BCJ relations between Yang-Mills amplitudes and underlies the double copy to gravitational amplitudes.
In this talk, I will explore how this extends to AdS$_4$, where a generalised gauge symmetry can be used to enforce the Jacobi relations away from the flat space limit; this lets us derive deformed BCJ relations. I will also review the spinor helicity in a curved background, leading to compact new expressions for 4pt Yang-Mills amplitudes in AdS$_4$.

Will you be pre-recording your talk? No 15-25 minutes Yes Yes

### Primary author

Connor Armstrong (Durham University)

### Presentation Materials

 Connor's talk.mp4 YTF_ColourKin.pdf