New measurement of K+ → πνν branching ratio

NA62 Collaboration

doi:10.22323/1.487.0047

New measurement of K⁺ → πνν branching ratio

NA62 Collaboration

INFN Sezione di Napoli

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

Résumé

The K⁺ → ⁺ decay is a “golden mode” for flavour physics. Its branching ratio is predicted with high precision by the Standard Model to be less than 10⁻¹⁰, and this decay mode is highly sensitive to indirect effects of new physics up to the highest mass scales. The NA62 experiment at the CERN SPS is designed to study the K⁺ → ⁺ decay, and provided the world’s most precise investigation of this decay using 2016-2018 data. Building on this success, the first results from a significantly improved analysis of new data, taken in 2021-2022 after beamline and detector upgrades, are presented, along with the combination with the 2016-2018 results.

langue originale	Anglais
Numéro d'article	047
journal	Proceedings of Science
Volume	487
Les DOIs	https://doi.org/10.22323/1.487.0047
état	Publié - 22 avr. 2026
Evénement	43rd International Symposium on Physics in Collision, PIC 2024 - Athens, Grcce Durée: 22 oct. 2024 → 25 oct. 2024

Accès au document

10.22323/1.487.0047

Autres fichiers et liens

Lien vers la publication dans Scopus

Contient cette citation

@article{c48fbce3b63244a3bf26b4659ac33abc,

title = "New measurement of K+ → πνν branching ratio",

abstract = "The K+ → + decay is a “golden mode” for flavour physics. Its branching ratio is predicted with high precision by the Standard Model to be less than 10−10, and this decay mode is highly sensitive to indirect effects of new physics up to the highest mass scales. The NA62 experiment at the CERN SPS is designed to study the K+ → + decay, and provided the world{\textquoteright}s most precise investigation of this decay using 2016-2018 data. Building on this success, the first results from a significantly improved analysis of new data, taken in 2021-2022 after beamline and detector upgrades, are presented, along with the combination with the 2016-2018 results.",

author = "\{NA62 Collaboration\} and Renato Fiorenza and R. Aliberti 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 A. Conovaloff and P. Cooper and \{Cortina Gil\}, E. and M. Corvino and F. Costantini and \{Cotta Ramusino\}, A. and D. Coward and E. Maurice",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0) All rights for text and data mining, AI training, and similar technologies for commercial purposes, are reserved.; 43rd International Symposium on Physics in Collision, PIC 2024 ; Conference date: 22-10-2024 Through 25-10-2024",

year = "2026",

month = apr,

day = "22",

doi = "10.22323/1.487.0047",

language = "English",

volume = "487",

journal = "Proceedings of Science",

issn = "1824-8039",

}

TY - JOUR

T1 - New measurement of K+ → πνν branching ratio

AU - NA62 Collaboration

AU - Fiorenza, Renato

AU - Aliberti, R.

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 - Conovaloff, A.

AU - Cooper, P.

AU - Cortina Gil, E.

AU - Corvino, M.

AU - Costantini, F.

AU - Cotta Ramusino, A.

AU - Coward, D.

AU - Maurice, E.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0) All rights for text and data mining, AI training, and similar technologies for commercial purposes, are reserved.

PY - 2026/4/22

Y1 - 2026/4/22

N2 - The K+ → + decay is a “golden mode” for flavour physics. Its branching ratio is predicted with high precision by the Standard Model to be less than 10−10, and this decay mode is highly sensitive to indirect effects of new physics up to the highest mass scales. The NA62 experiment at the CERN SPS is designed to study the K+ → + decay, and provided the world’s most precise investigation of this decay using 2016-2018 data. Building on this success, the first results from a significantly improved analysis of new data, taken in 2021-2022 after beamline and detector upgrades, are presented, along with the combination with the 2016-2018 results.

AB - The K+ → + decay is a “golden mode” for flavour physics. Its branching ratio is predicted with high precision by the Standard Model to be less than 10−10, and this decay mode is highly sensitive to indirect effects of new physics up to the highest mass scales. The NA62 experiment at the CERN SPS is designed to study the K+ → + decay, and provided the world’s most precise investigation of this decay using 2016-2018 data. Building on this success, the first results from a significantly improved analysis of new data, taken in 2021-2022 after beamline and detector upgrades, are presented, along with the combination with the 2016-2018 results.

UR - https://www.scopus.com/pages/publications/105038008699

U2 - 10.22323/1.487.0047

DO - 10.22323/1.487.0047

M3 - Conference article

AN - SCOPUS:105038008699

SN - 1824-8039

VL - 487

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 047

T2 - 43rd International Symposium on Physics in Collision, PIC 2024

Y2 - 22 October 2024 through 25 October 2024