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arXiv · 1412.0243

Measurement of the ratio of the charged kaon leptonic decays at NA62

Venelin Kozhuharov
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Abstract

The ratio of the leptonic charged kaon decays $R_K= Γ(K^{\pm} \to e^{\pm}ν) / Γ(K^{\pm} \to μ^{\pm}ν)$ is sensitive to the structure of the week interactions and can be precisely calculated within the Standard Model. Presence of New Physics can introduce a shift on its value of the order of a percent. The NA62 experiment at CERN SPS used data from a dedicated run in 2007 to perform a measurement of this ratio and probe the lepton universality. The data analysis technique and the final results are presented.

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Venelin Kozhuharov. 2014-11-30. Measurement of the ratio of the charged kaon leptonic decays at NA62. https://doi.org/10.1142/s2010194514604360

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