2019/11/15 by Cirigliano, V., Gisbert, H., Pich, A. +1
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph)
paper · doi:10.48550/arxiv.1911.06554
The recent release of improved lattice data has revived again the interest on precise theoretical calculations of the direct CP-violation ratio ε'/ε. We present a complete update of the Standard Model prediction [1,2], including a new re-analysis of isospin-breaking corrections which are of vital importance in the theoretical determination of this observable. The Standard Model prediction, Re (ε'/ε) = (14± 5)⋅ 10-4, turns out to be in good agreement with the experimental measurement.