Infinities within graviton scattering amplitudes
Dec, 199519 pages
Published in:
- Class.Quant.Grav. 14 (1997) 351-365
e-Print:
- hep-th/9512084 [hep-th]
Report number:
- SWAT-95-59
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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 counter-terms in the effective action. As an demonstration of this method we rederive the UV infinities present at one-loop when gravity is coupled to matter.Note:
- 19 pages, 3 postscript figures, plain tex Report-no: SWAT/95-59
- quantum gravity
- postulated particle: graviton
- scattering amplitude: graviton
- graviton: scattering amplitude
- infrared problem
- renormalization
- coupling: matter
- matter: coupling
- matter: scalar
- perturbation theory
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