Publication : t15/011

Illuminating Light Bending

Bjerrum-Bohr N.E.J. (The Niels Bohr Institute Blegdamsvej 17, DK-2100 Copenhagen, DENMARK)
Holstein B. (University of Massachusetts, Amherst)
Donoghue, John ()
Planté L. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Vanhove P. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
The interactions of gravitons with spin-1 matter are calculated in parallel with the well known photon case. It is shown that graviton scattering amplitudes can be factorized into a product of familiar electromagnetic forms, and cross sections for various reactions are straightforwardly evaluated using helicity methods. Universality relations are identified. Extrapolation to zero mass yields scattering amplitudes for photon-graviton and graviton-graviton scattering. The phenomenon of light bending near a massive object, which is generally treated using classical general relativity, is discussed from alternative points of view.
Année de publication : 2015
DOI : 10.22323/1.292.0077
Preprint : arXiv:1704.01624
Langue : Anglais
NB : Publié: PoS CORFU2016 (2017) 077


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