2000/07/13 by Stefano Bertolini, Bertolini, Stefano
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Magnetic confinement fusion research #Particle accelerators and beam dynamics #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0007137
16 pages, 5 figures, La Thuile 2000 Proceedings, refs added
openalex publication_date 2000/07/13 · arxiv created 2000/07/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
I shortly review the present status of the theoretical estimates of eps'/eps. I consider a few aspects of the theoretical calculations which may be relevant in understanding the present experimental results. In particular, I discuss the role of final state interactions and in general of non-factorizable contributions for the explanation of the Delta I = 1/2 selection rule in kaon decays and eps'/eps. Lacking reliable lattice calculations, the 1/N expansion and phenomenological approaches may help in understanding correlations among theoretical effects and the experimental data. The same dynamics which underlies the CP conserving selection rule may drive eps'/eps in the range of the recent experimental measurements.