Searches for lepton flavour and lepton number violation in K+ decays

被引：0

作者：

Romano, Angela ^{[1
]}

机构：

[1] Univ Birmingham, Birmingham, England

来源：

EUROPEAN PHYSICAL SOCIETY CONFERENCE ON HIGH ENERGY PHYSICS, EPS-HEP2019 | 2020年

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中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The NA62 experiment at CERN offers the highest experimental sensitivity to rare and forbidden kaon decays. A search for lepton number violating processes K+ -> pi(-)e(+)e(+) and K+ -> pi(-)mu(+)mu(+), using a partial data set collected by NA62 in 2016-2018, is reported. No signals are observed and upper limits at 90% confidence level on the branching fractions of these decays are obtained: 2.2 x 10(-10) and 4.2 x 10(-11), respectively. These results improve on previously reported measurements by factors of 3 and 2, respectively.

引用

页数：7

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