White, C. (2011) Factorization properties of soft graviton amplitudes. Journal of High Energy Physics, 1105(5), p. 60. (doi: 10.1007/JHEP05(2011)060)
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Publisher's URL: http://dx.doi.org/10.1007/JHEP05(2011)060
Abstract
We apply recently developed path integral resummation methods to perturbative quantum gravity. In particular, we provide supporting evidence that eikonal graviton amplitudes factorize into hard and soft parts, and confirm a recent hypothesis that soft gravitons are modelled by vacuum expectation values of products of certain Wilson line operators, which differ for massless and massive particles. We also investigate terms which break this factorization, and find that they are subleading with respect to the eikonal amplitude. The results may help in understanding the connections between gravity and gauge theories in more detail, as well as in studying gravitational radiation beyond the eikonal approximation.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | White, Dr Christopher |
| Authors: | White, C. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Research Group: | Particle Physics Theory |
| Journal Name: | Journal of High Energy Physics |
| Journal Abbr.: | JHEP |
| ISSN: | 1029-8479 |
| ISSN (Online): | 1029-8479 |
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