Balzan Lectures

From Twistors to Gravitational Scattering (2/2)

by Prof. Lionel Mason (University of Oxford & IHES)

Amphithéâtre Léon Motchane (IHES)

Amphithéâtre Léon Motchane


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


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