2001/11/21 by I. Scimemi, Scimemi, I., E. Pallante +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-lat #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0111262
Talk presented at the International Europhysics Conference on High Energy Physics, July 12-18, 2001,Budapest, Hungary
arxiv created 2001/11/21 · arxiv updated 2009/11/30
We overview the detailed analysis of epsilon'/epsilon within the Standard Model, presented in ref. 1. When all sources of large logarithms are considered, both at short and long distances, it is possible to perform a reliable Standard Model estimate of epsilon'/epsilon. The strong S-wave rescattering of the final pions has an important impact on this observable. The Standard Model prediction is found to be Re(epsilon'/epsilon) =(1.7 +- 0.9)*10-3, in good agreement with the most recent experimental measurements. A better estimate of the strange quark mass would reduce the uncertainty to about 30%.