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arXiv · 1008.1219

Lepton flavour universality test at the CERN NA62 experiment

Evgueni Goudzovski
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Abstract

A precision test of lepton universality by measurement of the ratio RK of K-->e nu to K-->mu nu decay rates was performed using a sample of 59963 K-->e nu candidates with 8.8% background contamination collected by the CERN NA62 experiment. The result RK = (2.486 +- 0.013)*10^{-5} is in agreement with the Standard Model expectation.

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Evgueni Goudzovski. 2010-08-06. Lepton flavour universality test at the CERN NA62 experiment. https://doi.org/10.1016/j.nuclphysbps.2010.12.066

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