Lepton flavour universality test at the CERN NA62 experiment

Details Lepton flavour universality test at the CERN NA62 experiment Lepton flavour universality test at the CERN NA62 experiment

2010-08-06

arxiv.org/abs/1008.1219v1

Nucl.Phys.Proc.Suppl.210-211:163-168,2011

Physics

High Energy Physics

High Energy Physics - Experiment

A talk given at the BEACH 2010 conference (Perugia, June 2010). 6 pages, 4 figures

Scientific paper

10.1016/j.nuclphysbps.2010.12.06

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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