Unimodular Trees versus Einstein Trees

Abstract

The maximally helicity violating (MHV) tree level scattering amplitudes involving three, four or five gravitons are worked out in Unimodular Gravity. They are found to coincide with the corresponding amplitudes in General Relativity. This a remarkable result, insofar as both the propagators and the vertices are quite different in both theories.

20 pages, 5 figures

References in corpus (7)

• Consistency Conditions on the S-Matrix of Massless Particles
• Taming Tree Amplitudes In General Relativity
• Tree Level Recursion Relations In General Relativity
• Quantum Corrections to Unimodular Gravity
• KLT relations from the Einstein-Hilbert Lagrangian
• Note on graviton MHV amplitudes
• Unimodular Gravity Redux

Cited by in corpus (19)

• Unimodular Gravity vs General Relativity: A status report
• Unimodular quantum gravity and the cosmological constant
• The path integral of unimodular gravity
• Can quantum fluctuations differentiate between standard and unimodular gravity?
• Do the gravitational corrections to the beta functions of the quartic and Yukawa couplings have an intrinsic physical meaning?
• Nonvanishing gravitational contribution to matter beta functions for vanishing dimensionful regulators
• Non-minimal Tinges of Unimodular Gravity
• Taming higher-derivative interactions and bootstrapping gravity with soft theorems
• Off-shell unimodular N=1, d=4 supergravity
• Scattering of fermions in the Yukawa theory coupled to Unimodular Gravity
• What do gravitons say about (unimodular) gravity?
• Stora's fine notion of divergent amplitudes
• Unimodular Gravity and the lepton anomalous magnetic moment at one-loop
• Embedding Unimodular Gravity in String Theory
• A note on unimodular $N=1,d=4$ AdS supergravity
• Unimodular gravity and the gauge/gravity duality
• Ghost-free higher derivative unimodular gravity
• Massive Unimodular Gravity
• Nonexistence of a parent theory for general relativity and unimodular gravity