Searches for lepton flavour/number violation in K+ and π0 decays at the NA62 experiment

The NA62 Collaboration

Searches for lepton flavour/number violation in K⁺ and π⁰ decays at the NA62 experiment

The NA62 Collaboration

European Organization for Nuclear Research

Résultats de recherche: Contribution à un journal › Article de conférence › Revue par des pairs

Résumé

Searches for the lepton number violating K⁺ → π⁻μ⁺e⁺ decay and lepton flavour violating decays K⁺ → π⁺μ⁻e⁺ and π⁰ → μ⁻e⁺ are reported, using NA62 data collected in 2017 and 2018. In the absence of a significant excess above the background in each channel, upper limits on the branching ratios are established at 90% confidence level: B(K⁺ → π⁻μ⁺e⁺) < 4.2 × 10⁻¹¹, B(K⁺ → π⁺μ⁻e⁺) < 6.6 × 10⁻¹¹, and B(π⁰ → μ⁻e⁺) < 3.2

langue originale	Anglais
Numéro d'article	130
journal	Proceedings of Science
Volume	402
état	Publié - 31 mars 2022
Evénement	22nd International Workshop on Neutrinos from Accelerators, NuFact 2021 - Cagliari, Italie Durée: 6 sept. 2021 → 11 sept. 2021

Contient cette citation

@article{5fadb4e1c6b24a2f8778c0bf8e8749a0,

title = "Searches for lepton flavour/number violation in K+ and π0 decays at the NA62 experiment",

abstract = "Searches for the lepton number violating K+ → π−μ+e+ decay and lepton flavour violating decays K+ → π+μ−e+ and π0 → μ−e+ are reported, using NA62 data collected in 2017 and 2018. In the absence of a significant excess above the background in each channel, upper limits on the branching ratios are established at 90\% confidence level: B(K+ → π−μ+e+) < 4.2 × 10−11, B(K+ → π+μ−e+) < 6.6 × 10−11, and B(π0 → μ−e+) < 3.2",

author = "\{The NA62 Collaboration\} and Joel Swallow and A. Akmete and R. Aliberti and F. Ambrosino and R. Ammendola and B. Angelucci and A. Antonelli and G. Anzivino and R. Arcidiacono and T. Bache and A. Baeva and D. Baigarashev and L. Bandiera and M. Barbanera and J. Bernhard and A. Biagioni and L. Bician and C. Biino and A. Bizzeti and T. Blazek and B. Bloch-Devaux and P. Boboc and V. Bonaiuto and M. Boretto and M. Bragadireanu and \{Briano Olvera\}, A. and D. Britton and F. Brizioli and Brunetti, \{M. B.\} and D. Bryman and F. Bucci and T. Capussela and J. Carmignani and A. Ceccucci and P. Cenci and V. Cerny and C. Cerri and B. Checcucci and A. Conovaloff and P. Cooper and \{Cortina Gil\}, E. and M. Corvino and F. Costantini and \{Cotta Ramusino\}, A. and D. Coward and P. Cretaro and G. D'Agostini and J. Dainton and P. Dalpiaz and E. Maurice",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons; 22nd International Workshop on Neutrinos from Accelerators, NuFact 2021 ; Conference date: 06-09-2021 Through 11-09-2021",

year = "2022",

month = mar,

day = "31",

language = "English",

volume = "402",

journal = "Proceedings of Science",

issn = "1824-8039",

}

TY - JOUR

T1 - Searches for lepton flavour/number violation in K+ and π0 decays at the NA62 experiment

AU - The NA62 Collaboration

AU - Swallow, Joel

AU - Akmete, A.

AU - Aliberti, R.

AU - Ambrosino, F.

AU - Ammendola, R.

AU - Angelucci, B.

AU - Antonelli, A.

AU - Anzivino, G.

AU - Arcidiacono, R.

AU - Bache, T.

AU - Baeva, A.

AU - Baigarashev, D.

AU - Bandiera, L.

AU - Barbanera, M.

AU - Bernhard, J.

AU - Biagioni, A.

AU - Bician, L.

AU - Biino, C.

AU - Bizzeti, A.

AU - Blazek, T.

AU - Bloch-Devaux, B.

AU - Boboc, P.

AU - Bonaiuto, V.

AU - Boretto, M.

AU - Bragadireanu, M.

AU - Briano Olvera, A.

AU - Britton, D.

AU - Brizioli, F.

AU - Brunetti, M. B.

AU - Bryman, D.

AU - Bucci, F.

AU - Capussela, T.

AU - Carmignani, J.

AU - Ceccucci, A.

AU - Cenci, P.

AU - Cerny, V.

AU - Cerri, C.

AU - Checcucci, B.

AU - Conovaloff, A.

AU - Cooper, P.

AU - Cortina Gil, E.

AU - Corvino, M.

AU - Costantini, F.

AU - Cotta Ramusino, A.

AU - Coward, D.

AU - Cretaro, P.

AU - D'Agostini, G.

AU - Dainton, J.

AU - Dalpiaz, P.

AU - Maurice, E.

PY - 2022/3/31

Y1 - 2022/3/31

N2 - Searches for the lepton number violating K+ → π−μ+e+ decay and lepton flavour violating decays K+ → π+μ−e+ and π0 → μ−e+ are reported, using NA62 data collected in 2017 and 2018. In the absence of a significant excess above the background in each channel, upper limits on the branching ratios are established at 90% confidence level: B(K+ → π−μ+e+) < 4.2 × 10−11, B(K+ → π+μ−e+) < 6.6 × 10−11, and B(π0 → μ−e+) < 3.2

AB - Searches for the lepton number violating K+ → π−μ+e+ decay and lepton flavour violating decays K+ → π+μ−e+ and π0 → μ−e+ are reported, using NA62 data collected in 2017 and 2018. In the absence of a significant excess above the background in each channel, upper limits on the branching ratios are established at 90% confidence level: B(K+ → π−μ+e+) < 4.2 × 10−11, B(K+ → π+μ−e+) < 6.6 × 10−11, and B(π0 → μ−e+) < 3.2

M3 - Conference article

AN - SCOPUS:85128880191

SN - 1824-8039

VL - 402

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 130

T2 - 22nd International Workshop on Neutrinos from Accelerators, NuFact 2021

Y2 - 6 September 2021 through 11 September 2021

ER -

Searches for lepton flavour/number violation in K+ and π0 decays at the NA62 experiment

Résumé

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Contient cette citation

Searches for lepton flavour/number violation in K⁺ and π⁰ decays at the NA62 experiment