# From Amplitudes to Gravitational Waves: Beyond GR

#### From Amplitudes to Gravitational Waves: Beyond GR

- Event time: 2:00pm until 3:00pm
- Event date: 23rd February 2022
- Speaker: Mariana Carrillo Gonzalez (Imperial College London)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

Since the first observation of gravitational waves by LIGO, a large theoretical effort has been made to reach the required precision in waveforms used for detection. Scattering amplitude techniques have been shown to be a promising tool towards reaching this goal. In my talk, I will explain how to obtain classical observables, which can be useful for gravitational wave calculations, from scattering amplitudes using two different approaches. The first one consists of using loop calculations that can help us describe physics beyond General Relativity in the inspiral phase of a black hole binary. For the second approach, I will introduce the color-kinematics duality and focus on the question of how this can help us understand gravitational theories at a fundamental level. I will do so by showing a simple example of gravitational waves for a massive gravity in 3 dimensions.

#### Event resources

### About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..