First search for K+ → π0πμe decays



Ashraf, MU, Cortina Gil, E, Minucci, E, Padolski, S, Petrov, P, Shaikhiev, A, Volpe, R, Numao, T, Petrov, Y, Velghe, B
et al (show 231 more authors) (2024) First search for K+ → π0πμe decays. Physics Letters B, 859. p. 139122. ISSN 0370-2693

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Abstract

The first search for the lepton number violating decay K+→π0π−μ+e+ and lepton flavour violating decays K+→π0π+μ−e+, K+→π0π+μ+e− has been performed using a dataset collected by the NA62 experiment at CERN in 2016–2018. Upper limits of 2.9×10−10, 3.1×10−10 and 5.0×10−10, respectively, are obtained at 90% CL for the branching ratios of the three decays on the assumption of uniform phase-space distributions.

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Divisions: Faculty of Science and Engineering
Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 16 Dec 2024 14:23
Last Modified: 16 Dec 2024 14:23
DOI: 10.1016/j.physletb.2024.139122
Open Access URL: https://doi.org/10.1016/j.physletb.2024.139122
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3189193