|   | 
Details
   web
Record
Author Nastase, H.; Rojas, F.; Rubio, C.
Title Celestial IR divergences in general most-subleading-color gluon and gravity amplitudes Type
Year (up) 2022 Publication Journal Of High Energy Physics Abbreviated Journal J. High Energy Phys.
Volume Issue 1 Pages 136
Keywords Scattering Amplitudes; Conformal Field Theory
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.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1029-8479 ISBN Medium
Area Expedition Conference
Notes WOS:000746997500001 Approved
Call Number UAI @ alexi.delcanto @ Serial 1530
Permanent link to this record