Jan 13 – 16, 2020
IFPU, Miramare campus, Trieste, Italy
Europe/Rome timezone

Constraints on an Effective Field Theory extension to gravity using gravitational-wave observations

Jan 14, 2020, 3:15 PM
15m
IFPU, Miramare campus, Trieste, Italy

IFPU, Miramare campus, Trieste, Italy

Via Beirut 2, Trieste, Italy

Speaker

Dr Richard Brito (Sapienza University of Rome)

Description

Gravitational-wave observations of coalescing binary black holes allow for novel tests of the strong-field regime of gravity. Using the detections of the LIGO and Virgo collaborations, we place the first constraints on higher-order curvature corrections that arise in the effective-field-theory extension of general relativity where higher-order powers in the Riemann tensor are included in the gravitational-field action. We construct gravitational-wave templates that describe the quasi-circular inspiral stage in this modified theory of gravity, and use Bayesian-selection methods to constrain this theory with respect to General Relativity. We focus on the two lowest-mass gravitational-wave events observed to date (GW151226 and GW170608), but describe a general strategy for updating constraints with more events.

Primary authors

Dr Richard Brito (Sapienza University of Rome) Mr Noah Sennett (Max Planck Institute for Gravitational Physics, Potsdam) Prof. Alessandra Buonanno (Max Planck Institute for Gravitational Physics, Potsdam) Prof. Victor Gorbenko (Institute for Advanced Study, Princeton) Prof. Leonardo Senatore (Stanford University)

Presentation materials