https://doi.org/10.1051/epjconf/202429613013
Wee partons in QCD and gravity: Double copy and universality
1 Center for Frontiers in Nuclear Science, Department of Physics and Astronomy, Stony Brook University, NY 11794, USA
2 Physics Department, Brookhaven National Laboratory, Upton, NY 11973, USA
* e-mail: himanshu.raj@stonybrook.edu
** e-mail: rajuv@bnl.gov
Published online: 26 June 2024
We discuss a quantitative “double copy” between radiation from shockwave collisions in Einstein gravity and in QCD. The correspondence extends to 2 → N amplitudes in Regge asymptotics. The classicalization and unitarization of these amplitudes at maximal occupancy, corresponding to black hole and Color Glass Condensate (CGC) states respectively, are described by the emergent Goldstone dynamics of wee partons. We outline some consequences of the universal dynamics on both sides of the correspondence.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
