A search for the K+ → μ−νe+e+ decay

The NA62 Collaboration

doi:10.1016/j.physletb.2023.137679

A search for the K⁺ → μ⁻νe⁺e⁺ decay

The NA62 Collaboration

University of Louvain
TRIUMF
University of British Columbia
Charles University
Johannes Gutenberg University
University of Ferrara
Sezione INFN di Ferrara
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
LNF-INFN
INFN Sezione di Napoli
University of Liverpool
INFN Sezione di Perugia
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Scuola Normale Superiore di Pisa
University of Rome
Sezione di Roma
INFN Roma Tor Vergata
INFN Sezione di Torino
Universidad Autónoma de San Luis Potosi
Horia Hulubei National Institute of Physics and Nuclear Engineering
Joint Institute for Nuclear Research, Dubna
Institute for Nuclear Research of the Russian Academy of Sciences
Kurchatov Institute
Comenius University
European Organization for Nuclear Research
University of Birmingham
University of Bristol
University of Glasgow
Faculty of Science and Technology, Lancaster University
George Mason University

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

19 Citations (Scopus)

Résumé

A search for the K⁺→μ⁻νe⁺e⁺ decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the emitted neutrino, has been performed using the dataset collected by the NA62 experiment at CERN in 2016–2018. An upper limit of 8.1×10⁻¹¹ is obtained for the decay branching fraction at 90% CL, improving by a factor of 250 over the previous search.

langue originale	Anglais
Numéro d'article	137679
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	838
Les DOIs	https://doi.org/10.1016/j.physletb.2023.137679
état	Publié - 10 mars 2023
Modification externe	Oui

Accès au document

10.1016/j.physletb.2023.137679

Contient cette citation

@article{d6b92b05c8f145a6a377f43c2a868c39,

title = "A search for the K+ → μ−νe+e+ decay",

abstract = "A search for the K+→μ−νe+e+ decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the emitted neutrino, has been performed using the dataset collected by the NA62 experiment at CERN in 2016–2018. An upper limit of 8.1×10−11 is obtained for the decay branching fraction at 90\% CL, improving by a factor of 250 over the previous search.",

keywords = "Kaon decays, Lepton flavour violation, Lepton number violation",

author = "\{The NA62 Collaboration\} and \{Cortina Gil\}, E. and A. Kleimenova and E. Minucci and S. Padolski and P. Petrov and A. Shaikhiev and R. Volpe and T. Numao and Y. Petrov and B. Velghe and Wong, \{V. W.S.\} and D. Bryman and J. Fu and T. Husek and J. Jerhot and K. Kampf and M. Zamkovsky and R. Aliberti and G. Khoriauli and J. Kunze and D. Lomidze and L. Peruzzo and M. Vormstein and R. Wanke and P. Dalpiaz and M. Fiorini and I. Neri and A. Norton and F. Petrucci and H. Wahl and \{Cotta Ramusino\}, A. and A. Gianoli and E. Iacopini and G. Latino and M. Lenti and A. Parenti and A. Bizzeti and F. Bucci and A. Antonelli and G. Georgiev and V. Kozhuharov and G. Lanfranchi and S. Martellotti and M. Moulson and T. Spadaro and G. Tinti and F. Ambrosino and T. Capussela and M. Corvino and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2023",

month = mar,

day = "10",

doi = "10.1016/j.physletb.2023.137679",

language = "English",

volume = "838",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A search for the K+ → μ−νe+e+ decay

AU - The NA62 Collaboration

AU - Cortina Gil, E.

AU - Kleimenova, A.

AU - Minucci, E.

AU - Padolski, S.

AU - Petrov, P.

AU - Shaikhiev, A.

AU - Volpe, R.

AU - Numao, T.

AU - Petrov, Y.

AU - Velghe, B.

AU - Wong, V. W.S.

AU - Bryman, D.

AU - Fu, J.

AU - Husek, T.

AU - Jerhot, J.

AU - Kampf, K.

AU - Zamkovsky, M.

AU - Aliberti, R.

AU - Khoriauli, G.

AU - Kunze, J.

AU - Lomidze, D.

AU - Peruzzo, L.

AU - Vormstein, M.

AU - Wanke, R.

AU - Dalpiaz, P.

AU - Fiorini, M.

AU - Neri, I.

AU - Norton, A.

AU - Petrucci, F.

AU - Wahl, H.

AU - Cotta Ramusino, A.

AU - Gianoli, A.

AU - Iacopini, E.

AU - Latino, G.

AU - Lenti, M.

AU - Parenti, A.

AU - Bizzeti, A.

AU - Bucci, F.

AU - Antonelli, A.

AU - Georgiev, G.

AU - Kozhuharov, V.

AU - Lanfranchi, G.

AU - Martellotti, S.

AU - Moulson, M.

AU - Spadaro, T.

AU - Tinti, G.

AU - Ambrosino, F.

AU - Capussela, T.

AU - Corvino, M.

AU - Maurice, E.

PY - 2023/3/10

Y1 - 2023/3/10

N2 - A search for the K+→μ−νe+e+ decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the emitted neutrino, has been performed using the dataset collected by the NA62 experiment at CERN in 2016–2018. An upper limit of 8.1×10−11 is obtained for the decay branching fraction at 90% CL, improving by a factor of 250 over the previous search.

AB - A search for the K+→μ−νe+e+ decay, forbidden within the Standard Model by either lepton number or lepton flavour conservation depending on the flavour of the emitted neutrino, has been performed using the dataset collected by the NA62 experiment at CERN in 2016–2018. An upper limit of 8.1×10−11 is obtained for the decay branching fraction at 90% CL, improving by a factor of 250 over the previous search.

KW - Kaon decays

KW - Lepton flavour violation

KW - Lepton number violation

U2 - 10.1016/j.physletb.2023.137679

DO - 10.1016/j.physletb.2023.137679

M3 - Article

AN - SCOPUS:85146583658

SN - 0370-2693

VL - 838

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 137679

ER -

A search for the K+ → μ−νe+e+ decay

Résumé

Accès au document

Empreinte digitale

Contient cette citation

A search for the K⁺ → μ⁻νe⁺e⁺ decay