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arXiv · 1808.09041

Measurement of the form factors of charged kaon semileptonic decays

2 Collaboration
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Abstract

A measurement of the form factors of charged kaon semileptonic decays is presented, based on $4.4 \times 10^6$ $K^\pm \to \pi^0 e^\pm \nu_e$ ($K^\pm_{e3}$) and $2.3 \times 10^6$ $K^\pm \to \pi^0 \mu^\pm \nu_{\mu}$ ($K^\pm_{\mu3}$) decays collected in 2004 by the NA48/2 experiment. The results are obtained with improved precision as compared to earlier measurements. The combination of measurements in the $K^\pm_{e3}$ and $K^\pm_{\mu3}$ modes is also presented.

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2 Collaboration. 2018-08-27. Measurement of the form factors of charged kaon semileptonic decays. https://arxiv.org/abs/1808.09041

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