Lepton flavour universality test at the CERN NA62 experiment
High Energy Physics - Experiment
2011-04-22 v1
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.
Cite
@article{arxiv.1008.1219,
title = {Lepton flavour universality test at the CERN NA62 experiment},
author = {Evgueni Goudzovski},
journal= {arXiv preprint arXiv:1008.1219},
year = {2011}
}
Comments
A talk given at the BEACH 2010 conference (Perugia, June 2010). 6 pages, 4 figures