文章基本信息

标题：Lepton Universality Tests in Kaon Decays at NA62.
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作者：F. Bucci
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2012
卷号：2012
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A precision measurement of the helicity-suppressed ratio RK = G(K± ! e±n )/G(K± !m±n ) has been performed using the full dedicated data sample collected by the NA62 experiment at CERN in 2007-2008. The result, RK = (2.488±0.010)×10−5, is in agreement with the Standard Model expectation and allows to test the lepton flavor universality with the same accuracy as the tau and pion leptonic decays.