O. Yushchenko

collaborators

4 papers

hep-ex2026

Search for heavy neutral leptons in $I ¨ ^{+}$ decays to positrons

NA62 Collaboration

A search for heavy neutral lepton ( $N$ ) production in $I ¨ ^{+} \to e^{+} N$ in-flight decays using data collected by the NA62 experiment at CERN in 2017-2024 is reported. Upper limits fo…

hep-ex2025

Searches for hidden sectors using $K^{+} \to I ¨ ^{+} X$ decays

NA62 Collaboration

Results from the study of the rare decays $K^{+} \to I ¨ ^{+} I^½ I^ˉ ½$ , $K^{+} \to I ¨ ^{+} I^¼^{+} I^¼^{-}$ and $K^{+} \to I ¨ ^{+} I^^{3} I^^{3}$ at the NA62 experiment at CERN are interpreted…

hep-ex2025

Search for hadronic decays of feebly-interacting particles at NA62

NA62 Collaboration

The NA62 experiment at CERN has the capability to collect data in a beam-dump mode, where 400 GeV protons are dumped on an absorber. In this configuration, New Physics particles, i…

hep-ex2025

Observation of the $K^{+} \to I ¨ ^{+} I^½ I^ˉ ½$ decay and measurement of its branching ratio

NA62 Collaboration

A measurement of the $K^{+} \to I ¨ ^{+} I^½ I^ˉ ½$ decay by the NA62 experiment at the CERN SPS is presented, using data collected in 2021 and 2022. This dataset was recorded, a…

Search for heavy neutral leptons in I¨+ decays to positrons

Searches for hidden sectors using K+→I¨+X decays

Search for hadronic decays of feebly-interacting particles at NA62

Observation of the K+→I¨+I^½I^ˉ½ decay and measurement of its branching ratio

Search for heavy neutral leptons in $I ¨ ^{+}$ decays to positrons

Searches for hidden sectors using $K^{+} \to I ¨ ^{+} X$ decays

Observation of the $K^{+} \to I ¨ ^{+} I^½ I^ˉ ½$ decay and measurement of its branching ratio