Article ID Journal Published Year Pages File Type
9857609 Nuclear Physics B - Proceedings Supplements 2005 6 Pages PDF
Abstract
The NA48/2 experiment at CERN is performing high precision studies of charged kaon decays, using an upgraded NA48 setup and a novel design for simultaneous unseparated K± beams. The main goal is to search for direct CP violation in decays to three pions with a sensitivity at a level of 10−4 on the asymmetry Ag=(g+−g−)/(g++g−) where g is the linear slope parameter in the Dalitz plot. The experimental procedure and the main systematic effects are discussed, based on the preliminary analysis of a fraction (less than 50%) of the data recorded. The statistical errors on the K±→π+π−π± and K±→π0π0π± asymmetries are 2.7×10−4 and 5×10−4, respectively. The large amount of charged kaon decays collected allow also precision measurements of several rare decay processes.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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