LFV/LNV searches at the NA62 experiment

NA62 Collaboration

doi:10.22323/1.525.0019

LFV/LNV searches at the NA62 experiment

NA62 Collaboration

Istituto Nazionale di Fisica Nucleare, Sezione di Firenze

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

Résumé

The NA62 experiment at CERN has collected a large sample of K⁺ decays in flight during several data-taking periods in 2016 − 2017 − 2018 (Run1) and the ongoing Run2, which started in 2021. Dedicated lepton-pair trigger lines have enabled a broad rare and forbidden decay programme. A review of searches for lepton flavour and number violating K⁺ and π⁰ decays with the NA62 Run1 lepton-pair dataset is presented. Ten final states have been investigated, improving on the world data in each case. Upper limits of the decay branching fractions are obtained typically at the 10⁻¹¹ level, and the sensitivities are not limited by backgrounds. Prospects of the searches with the full NA62 dataset are also discussed.

langue originale	Anglais
Numéro d'article	019
journal	Proceedings of Science
Volume	525
Les DOIs	https://doi.org/10.22323/1.525.0019
état	Publié - 20 juil. 2026
Evénement	4th Italian Workshop on Physics at High Intensity, WIFAI2025 - Bari, Italie Durée: 11 nov. 2025 → 14 nov. 2025

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10.22323/1.525.0019

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@article{82f5a96b36a44aa499350593c7f13611,

title = "LFV/LNV searches at the NA62 experiment",

abstract = "The NA62 experiment at CERN has collected a large sample of K+ decays in flight during several data-taking periods in 2016 − 2017 − 2018 (Run1) and the ongoing Run2, which started in 2021. Dedicated lepton-pair trigger lines have enabled a broad rare and forbidden decay programme. A review of searches for lepton flavour and number violating K+ and π0 decays with the NA62 Run1 lepton-pair dataset is presented. Ten final states have been investigated, improving on the world data in each case. Upper limits of the decay branching fractions are obtained typically at the 10−11 level, and the sensitivities are not limited by backgrounds. Prospects of the searches with the full NA62 dataset are also discussed.",

author = "\{NA62 Collaboration\} and Ilaria Panichi and A. Akmete and R. Aliberti and S. Alibocus and F. Ambrosino and R. Ammendola and B. Angelucci and A. Antonelli and G. Anzivino and R. Arcidiacono and Ashraf, \{M. U.\} and T. Bache and A. Baeva and D. Baigarashev and L. Bandiera and M. Barbanera and V. Bautin 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 N. Canale and T. Capussela and J. Carmignani and A. Ceccucci and P. Cenci and M. Ceoletta and V. Cerny and C. Cerri and X. Chang and B. Checcucci and C. Chiarini and M. Cirkovic and A. Conovaloff and J. Cook and P. Cooper and E. Maurice",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s); 4th Italian Workshop on Physics at High Intensity, WIFAI2025 ; Conference date: 11-11-2025 Through 14-11-2025",

year = "2026",

month = jul,

day = "20",

doi = "10.22323/1.525.0019",

language = "English",

volume = "525",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - LFV/LNV searches at the NA62 experiment

AU - NA62 Collaboration

AU - Panichi, Ilaria

AU - Akmete, A.

AU - Aliberti, R.

AU - Alibocus, S.

AU - Ambrosino, F.

AU - Ammendola, R.

AU - Angelucci, B.

AU - Antonelli, A.

AU - Anzivino, G.

AU - Arcidiacono, R.

AU - Ashraf, M. U.

AU - Bache, T.

AU - Baeva, A.

AU - Baigarashev, D.

AU - Bandiera, L.

AU - Barbanera, M.

AU - Bautin, V.

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 - Canale, N.

AU - Capussela, T.

AU - Carmignani, J.

AU - Ceccucci, A.

AU - Cenci, P.

AU - Ceoletta, M.

AU - Cerny, V.

AU - Cerri, C.

AU - Chang, X.

AU - Checcucci, B.

AU - Chiarini, C.

AU - Cirkovic, M.

AU - Conovaloff, A.

AU - Cook, J.

AU - Cooper, P.

AU - Maurice, E.

PY - 2026/7/20

Y1 - 2026/7/20

N2 - The NA62 experiment at CERN has collected a large sample of K+ decays in flight during several data-taking periods in 2016 − 2017 − 2018 (Run1) and the ongoing Run2, which started in 2021. Dedicated lepton-pair trigger lines have enabled a broad rare and forbidden decay programme. A review of searches for lepton flavour and number violating K+ and π0 decays with the NA62 Run1 lepton-pair dataset is presented. Ten final states have been investigated, improving on the world data in each case. Upper limits of the decay branching fractions are obtained typically at the 10−11 level, and the sensitivities are not limited by backgrounds. Prospects of the searches with the full NA62 dataset are also discussed.

AB - The NA62 experiment at CERN has collected a large sample of K+ decays in flight during several data-taking periods in 2016 − 2017 − 2018 (Run1) and the ongoing Run2, which started in 2021. Dedicated lepton-pair trigger lines have enabled a broad rare and forbidden decay programme. A review of searches for lepton flavour and number violating K+ and π0 decays with the NA62 Run1 lepton-pair dataset is presented. Ten final states have been investigated, improving on the world data in each case. Upper limits of the decay branching fractions are obtained typically at the 10−11 level, and the sensitivities are not limited by backgrounds. Prospects of the searches with the full NA62 dataset are also discussed.

UR - https://www.scopus.com/pages/publications/105047914343

U2 - 10.22323/1.525.0019

DO - 10.22323/1.525.0019

M3 - Conference article

AN - SCOPUS:105047914343

SN - 1824-8039

VL - 525

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 019

T2 - 4th Italian Workshop on Physics at High Intensity, WIFAI2025

Y2 - 11 November 2025 through 14 November 2025

ER -

LFV/LNV searches at the NA62 experiment

Résumé

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