The 28th International Workshop on Weak Interactions and Neutrinos (WIN2021)

Search for heavy neutral lepton production at the NA62 experiment

Not scheduled

20m

Poster session Neutrino Physics Neutrino Physics Session 2

Speaker

Mrs Elisa Minucci

Description

Searches for heavy neutral lepton production in K+ → e+N and K+ → +N decays using the data set collected by the NA62 experiment at CERN in 2016-18 are presented. Upper limits on the elements of the extended neutrino mixing matrix |Ue4|2 and |U4|2 are established at the levels of 10-9 and 10-8, respectively, improving on the earlier searches for heavy neutral lepton production and decays in the kinematically accessible mass range.

Presentation materials

NA62_HNLPoster_WIN2021_EMinucci.pdf