2015/07/18 by Edmond Iancu, E. Iancu, J. D. Madrigal +11
Physics and Astronomy · #Electromagnetic Scattering and Analysis #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #hep-ph
paper · pdf · doi:10.48550/arxiv.1507.05160
6 pages, 4 figures; Proceedings of the XXIII International Workshop on Deep-Inelastic Scattering (27 April-May 1 2015, Dallas (USA))
arxiv created 2015/07/18 · openalex publication_date 2015/07/18 · arxiv updated 2015/07/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Perturbative corrections beyond leading-log accuracy to BFKL and BK equations, describing the rapidity evolution of QCD scattering amplitudes at high energy, exhibit strong convergence problems due to radiative corrections enhanced by large single and double transverse logs. We identify explicitly the physical origin of double transverse logs and resum them directly in coordinate space as appropriate for BK equation, in terms of an improved local-in-rapidity evolution kernel. Numerical results show the crucial role of double-logarithmic resummation for BK evolution, which is stabilized and slowed down by roughly a factor of two.