2012/02/29 by F. Bastianelli, Fiorenzo Bastianelli, Olindo Corradini +5 · 3 citations
Mathematics · Physics and Astronomy · #Amplitude #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Diffeomorphism #Gravitation #Graviton #Limit (mathematics) #Mathematical physics #Mathematics #Particle physics #Photon #Physics #Pulsars and Gravitational Waves Research #Quantum electrodynamics #Quantum mechanics #Scattering amplitude #Spinor #Theoretical physics #gr-qc #hep-th
paper · pdf · doi:10.1016/j.physletb.2012.08.030
14 pages, 1 figure. Final version to be published in Physics Letters B
arxiv created 2012/08/15 · openalex publication_date 2012/08/17 · arxiv updated 2015/06/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present first results of a systematic study of the structure of the low-energy limit of the one-loop photon–graviton amplitudes induced by massive scalars and spinors. Our main objective is the search of KLT-type relations where effectively two photons merge into a graviton. We find such a relation at the graviton–photon–photon level. We also derive the diffeomorphism Ward identity for the 1PI one-graviton– N -photon amplitudes.