Infrared Behaviour of Massive Scalar Matter coupled to Gravity

Details Infrared Behaviour of Massive Scalar Matter coupled to Gravity Infrared Behaviour of Massive Scalar Matter coupled to Gravity

2001-01-24

arxiv.org/abs/hep-th/0101156v3

Annals Phys. 294 (2001) 48-66

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, some mistakes corrected

Scientific paper

10.1006/aphy.2001.6192

In the framework of causal perturbation theory we consider a massive scalar field coupled to gravity. In the field theoretic approach to quantum gravity (QG) we start with a massless second rank tensor field. This tensor field is then quantized in a covariant way in Minkowski space. This article deals with the adiabatic limit for graviton radiative corrections in a scattering process of two massive scalar particles. We compute the differential cross-section for bremsstrahlung processes in which one of the outgoing particles emites a graviton of low energy, a so called soft graviton. Since the emited graviton will not be detected we have to integrate over all soft gravitons.

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