Searches for lepton flavour and lepton number violation in $K^{+}$ decays at NA62

Joel Swallow; for the NA62 Collaboration

Searches for lepton flavour and lepton number violation in $K^{+}$ decays at NA62

Joel Swallow, for the NA62 Collaboration

Physics and Astronomy

Research output: Working paper/Preprint › Preprint

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Abstract

A search for the lepton number violating $K^{+}\rightarrow\pi^{-}\mu^{+}e^{+}$ and lepton flavour violating $K^{+}\rightarrow\pi^{+}\mu^{-}e^{+}$ decays is reported using NA62 data collected in 2017 and 2018. No significant excess is observed above the background expectation and therefore upper limits are established on the branching ratios at $90\%$ confidence level: $\mathcal{B}(K^{+}\rightarrow\pi^{-}\mu^{+}e^{+})

Original language	English
Publication status	Published - 27 Oct 2020

Bibliographical note

6 pages, 3 figures, Prepared for the proceedings of the 40th International Conference on High Energy physics (ICHEP2020), July 28 - August 6, 2020

Keywords

hep-ex

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2010.14475v1

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title = "Searches for lepton flavour and lepton number violation in $K^{+}$ decays at NA62",

abstract = " A search for the lepton number violating $K^{+}\rightarrow\pi^{-}\mu^{+}e^{+}$ and lepton flavour violating $K^{+}\rightarrow\pi^{+}\mu^{-}e^{+}$ decays is reported using NA62 data collected in 2017 and 2018. No significant excess is observed above the background expectation and therefore upper limits are established on the branching ratios at $90\%$ confidence level: $\mathcal{B}(K^{+}\rightarrow\pi^{-}\mu^{+}e^{+})",

keywords = "hep-ex",

author = "Joel Swallow and Collaboration, {for the NA62}",

note = "6 pages, 3 figures, Prepared for the proceedings of the 40th International Conference on High Energy physics (ICHEP2020), July 28 - August 6, 2020",

year = "2020",

month = oct,

day = "27",

language = "English",

type = "WorkingPaper",

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T1 - Searches for lepton flavour and lepton number violation in $K^{+}$ decays at NA62

AU - Swallow, Joel

AU - Collaboration, for the NA62

N1 - 6 pages, 3 figures, Prepared for the proceedings of the 40th International Conference on High Energy physics (ICHEP2020), July 28 - August 6, 2020

PY - 2020/10/27

Y1 - 2020/10/27

N2 - A search for the lepton number violating $K^{+}\rightarrow\pi^{-}\mu^{+}e^{+}$ and lepton flavour violating $K^{+}\rightarrow\pi^{+}\mu^{-}e^{+}$ decays is reported using NA62 data collected in 2017 and 2018. No significant excess is observed above the background expectation and therefore upper limits are established on the branching ratios at $90\%$ confidence level: $\mathcal{B}(K^{+}\rightarrow\pi^{-}\mu^{+}e^{+})

AB - A search for the lepton number violating $K^{+}\rightarrow\pi^{-}\mu^{+}e^{+}$ and lepton flavour violating $K^{+}\rightarrow\pi^{+}\mu^{-}e^{+}$ decays is reported using NA62 data collected in 2017 and 2018. No significant excess is observed above the background expectation and therefore upper limits are established on the branching ratios at $90\%$ confidence level: $\mathcal{B}(K^{+}\rightarrow\pi^{-}\mu^{+}e^{+})

KW - hep-ex

M3 - Preprint

BT - Searches for lepton flavour and lepton number violation in $K^{+}$ decays at NA62

ER -

Searches for lepton flavour and lepton number violation in $K^{+}$ decays at NA62

Abstract

Bibliographical note

Keywords

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Cite this