We report a measurement of the direct CP violation asymmetry parameter Ag in charged kaon decays K±→π±π +π- by the NA48/2 experiment at the CERN SPS. The experiment has been designed not to be limited by systematics in the asymmetry measurement. Using 1.67×109 such decays collected during the 2003 run, the charge asymmetry in the Dalitz plot linear slope parameter g has been measured to be Ag=(1.7±2.9)×10-4. The precision of the result is limited by the statistics used.
Search for direct CP violation in the decays K+- ---> 3pi+-
ANZIVINO, Giuseppina;IMBERGAMO, ERMANNO;NAPPI, Aniello;PICCINI, Mauro;RAGGI, MAURO;VALDATA, Marisa
2006
Abstract
We report a measurement of the direct CP violation asymmetry parameter Ag in charged kaon decays K±→π±π +π- by the NA48/2 experiment at the CERN SPS. The experiment has been designed not to be limited by systematics in the asymmetry measurement. Using 1.67×109 such decays collected during the 2003 run, the charge asymmetry in the Dalitz plot linear slope parameter g has been measured to be Ag=(1.7±2.9)×10-4. The precision of the result is limited by the statistics used.File in questo prodotto:
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