| Full text | |
| Author(s): |
Total Authors: 3
|
| Affiliation: | [1] Univ Estadual Paulista, UNESP, Inst Fis Teor, R Dr Bento T Ferraz 271, Bl 2, BR-01140070 Sao Paulo, SP - Brazil
[2] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Diagonal Torres 2640, Santiago - Chile
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Journal of High Energy Physics; n. 1 JAN 25 2022. |
| Web of Science Citations: | 0 |
| Abstract | |
Gluon amplitudes at most-subleading order in the 1/N expansion share a remarkable simplicity with graviton amplitudes: collinear divergences are completely absent in both and, as a consequence, their full IR behavior arises from soft gluon/graviton exchange among the external states. In this paper we study the effect of all-loop IR divergences of celestial most-subleading color gluon amplitudes and their similarities with the celestial gravity case. In particular, a simple celestial exponentiation formula for the dipole part can be written. We also analize how this exponentiation is modified by non-dipole contributions. Finally we also show that, in the Regge limit, the soft factor satisfies the Knizhnik-Zamolodchikov equation hinting at the possibility that, in this limit, an effective Wess-Zumino-Witten model would describe the dynamics of the infrared sector. (AU) | |
| FAPESP's process: | 19/13231-7 - Chile - São Paulo network on holography |
| Grantee: | Horatiu Stefan Nastase |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 16/01343-7 - ICTP South American Institute for Fundamental Research: a regional center for theoretical physics |
| Grantee: | Nathan Jacob Berkovits |
| Support Opportunities: | Special Projects |
| FAPESP's process: | 19/21281-4 - Gauge / gravity duality |
| Grantee: | Horatiu Stefan Nastase |
| Support Opportunities: | Research Projects - Thematic Grants |