Recent Results from the KTeV Experiment

Details Recent Results from the KTeV Experiment Recent Results from the KTeV Experiment

2006-06-20

arxiv.org/abs/hep-ex/0606044v1

Physics

High Energy Physics

High Energy Physics - Experiment

Proceedings from Rencontres De Moriond 2006: Electroweak Interactions and Unified Theories

Scientific paper

We present recent preliminary results from five decay channels. From the $K_L\to\pi^+\pi^-\gamma$ channel, we extract form factors for the CP violating M1 direct photon emission amplitude and the fraction of the total decay amplitude that is due to direct emission. We have placed an upper limit on the $K_L\to\pi^0\pi^0\gamma$ branching ratio, and preliminary measurements of the $K_L\to\pi^{\pm}e^{\mp}\nu e^+e^-$ and $\pi^0\to e^+e^-$ branching ratios are presented. Finally, we report measurements of both the branching ratio and the form factor parameters for the decay $K_L\to e^+e^-\gamma$.

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