Scattering amplitudes in affine gravity

Affine gravity is a connection-based formulation of gravity that does not involve a metric. After a review of basic properties of affine gravity, we compute the tree-level scattering amplitude of scalar particles interacting gravitationally via the connection in a curved spacetime. We find that, whi...

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Bibliographic Details
Published in:Physical review. D 2021-05, Vol.103 (10), p.1, Article 105019
Main Authors: Knorr, Benjamin, Ripken, Chris
Format: Article
Language:English
Subjects:
Quantum gravity
Relativity
Scattering amplitude
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Summary:Affine gravity is a connection-based formulation of gravity that does not involve a metric. After a review of basic properties of affine gravity, we compute the tree-level scattering amplitude of scalar particles interacting gravitationally via the connection in a curved spacetime. We find that, while classically equivalent to general relativity, affine gravity differs from metric quantum gravity.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.103.105019