We report here the first observation by the NA48/2 experiment of the rare decay K± → π±π0e+e-. From a sample of about 2000 decay candidates collected in 2003, a preliminary value of the branching ratio in the full kinematic space has been obtained as (4.06 ± 0.17) · 10-6.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - 2015|
|Event||23rd European Physical Society Conference on High Energy Physics, EPS-HEP 2015 - Vienna, Austria|
Duration: Jul 22 2015 → Jul 29 2015
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