Search for LNV/LFV K+ decays at the NA62 experiment at CERN

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Authors

  • NA62 Collaboration

Colleges, School and Institutes

Abstract

New results are presented for the first time of searches for lepton number violating (LNV) decays K+ → πe+e+ and K+ → πμ+μ+ from the NA62 experiment at CERN using a subset of 2017 data. No LNV signals are observed and upper limits are set on the branching ratios, B(K+ → πe+e+) < 2.2 × 1010 and B(K+ → πμ+μ+) < 4.2 × 1011, at 90% confidence level.

Bibliographic note

Publisher Copyright: © 2019 CERN for the benefit of the ATLAS and CMS Collaborations. CC-BY-4.0 license. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

Details

Original languageEnglish
Title of host publicationProceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019
EditorsEtienne Auge, Jacques Dumarchez, Jean Tron Thanh Van
Publication statusPublished - 2020
Event54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019 - La Thuile, Italy
Duration: 16 Mar 201923 Mar 2019

Publication series

NameProceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019

Conference

Conference54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019
Country/TerritoryItaly
CityLa Thuile
Period16/03/1923/03/19