We report on an ongoing study of photon amplitudes, graviton amplitudes and mixed photon-graviton amplitudes at tree-level using the worldline formalism. We explicitly recalculate the amplitude with one photon and one graviton coupled to a scalar propagator, relevant for graviton photoproduction. We comment on the factorization properties of this amplitude, and outline a generalization to similar processes involving more gravitons.
Gravitational Compton Scattering from the Worldline Formalism / Ahmadiniaz, Naser; Corradini, Olindo; Davila, Jose Manuel; Schubert, Christian. - ELETTRONICO. - 43:(2016), pp. 1-9. (Intervento presentato al convegno 12th International Symposium on Cosmology and Particle Astrophysics (CosPA 2015) tenutosi a Daejeon, Republic of Korea nel 12-16 Oct 2015) [10.1142/S2010194516602015].
Gravitational Compton Scattering from the Worldline Formalism
CORRADINI, Olindo;
2016
Abstract
We report on an ongoing study of photon amplitudes, graviton amplitudes and mixed photon-graviton amplitudes at tree-level using the worldline formalism. We explicitly recalculate the amplitude with one photon and one graviton coupled to a scalar propagator, relevant for graviton photoproduction. We comment on the factorization properties of this amplitude, and outline a generalization to similar processes involving more gravitons.
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