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 × 10^9 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±→ 3π± / J. R., B., A. J., C., G., K., C., L., D. J., M., M. W., S., S. A., W., R., A., G., B., N., C., A., C., D., C., V., F., M., F., L., G., A., G., W., K., A., N., A., M., M., P., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 634:5-6(2006), pp. 474-482. [10.1016/j.physletb.2006.02.011]
Search for direct CP violation in the decays K±→ 3π±
BIZZETI, Andrea;
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 × 10^9 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 | Dimensione | Formato | |
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