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Balzan Lectures
# From Twistors to Gravitational Scattering (2/2)

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Amphithéâtre Léon Motchane (IHES)
### Amphithéâtre Léon Motchane

#### IHES

Le Bois-Marie
35, route de Chartres
91440 Bures-sur-Yvette

Description

Lecture 2: A Twistor Formula for the Tree-Level Gravity S-Matrix

This lecture will obtain a compact twistor formula for the full tree-level gravitational S-matrix beyond the self-dual sector. It uses an extension of the complex geometry of twistor space of the previous lecture. In the final formula, all integrations are saturated against delta functions yielding a sum of residues. These depend on the n momenta and polarization vectors of associated gravity linear waves.

*Supported by the "2021 Balzan Prize for Gravitation: Physical and Astrophysical Aspects", awarded to Thibault Damour*

From the same series

Organized by

Thibault Damour

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