Infinities within graviton scattering amplitudes
Abstract
We present unitarity as a method for determining the infinities present in graviton scattering amplitudes. The infinities are a combination of IR and UV. By understanding the soft singularities we may extract the UV infinities and relate these to counterterms in the effective action. As a demonstration of this method we re-derive the UV infinities present at the 1-loop level when gravity is coupled to matter.
- Publication:
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Classical and Quantum Gravity
- Pub Date:
- February 1997
- DOI:
- 10.1088/0264-9381/14/2/009
- arXiv:
- arXiv:hep-th/9512084
- Bibcode:
- 1997CQGra..14..351D
- Keywords:
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- High Energy Physics - Theory
- E-Print:
- revised version