Abstract
We argue that the tree-level graviton-scalar scattering in the Regge limit is unitarized by non-perturbative effects within General Relativity alone, that is without resorting to any extension thereof. At Planckian energy the back reaction of the incoming graviton on the background geometry produces a non-perturbative plane wave which softens the UV-behavior in turn. Our amplitude interpolates between the perturbative graviton-scalar scattering at low energy and scattering on a classical plane wave in the Regge limit that is bounded for all values of s.
| Dokumententyp: | Zeitschriftenartikel |
|---|---|
| Fakultät: | Physik |
| Themengebiete: | 500 Naturwissenschaften und Mathematik > 530 Physik |
| ISSN: | 1434-6044 |
| Sprache: | Englisch |
| Dokumenten ID: | 82572 |
| Datum der Veröffentlichung auf Open Access LMU: | 15. Dez. 2021, 15:02 |
| Letzte Änderungen: | 15. Dez. 2021, 15:02 |
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