Search for LNV/LFV K+ decays at the NA62 experiment at CERN

NA62 Collaboration

Search for LNV/LFV K⁺ decays at the NA62 experiment at CERN

NA62 Collaboration

Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

New results are presented for the first time of searches for lepton number violating (LNV) decays K⁺ → π⁻e⁺e⁺ and K⁺ → π⁻μ⁺μ⁺ from the NA62 experiment at CERN using a subset of 2017 data. No LNV signals are observed and upper limits are set on the branching ratios, B(K⁺ → π⁻e⁺e⁺) < 2.2 × 10⁻¹⁰ and B(K⁺ → π⁻μ⁺μ⁺) < 4.2 × 10⁻¹¹, at 90% confidence level.

Original language	English
Title of host publication	Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019
Editors	Etienne Auge, Jacques Dumarchez, Jean Tron Thanh Van
Publisher	ARISF
Pages	315-320
Number of pages	6
ISBN (Electronic)	9791096879120
Publication status	Published - 2020
Event	54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019 - La Thuile, Italy Duration: 16 Mar 2019 → 23 Mar 2019

Publication series

Name	Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019

Conference

Conference	54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019
Country/Territory	Italy
City	La Thuile
Period	16/03/19 → 23/03/19

Bibliographical note

Publisher Copyright:
© 2019 CERN for the benefit of the ATLAS and CMS Collaborations. CC-BY-4.0 license.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

Astronomy and Astrophysics
Atomic and Molecular Physics, and Optics

Cite this

NA62 Collaboration (2020). Search for LNV/LFV K⁺ decays at the NA62 experiment at CERN. In E. Auge, J. Dumarchez, & J. Tron Thanh Van (Eds.), Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019 (pp. 315-320). (Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019). ARISF.

NA62 Collaboration. / Search for LNV/LFV K⁺ decays at the NA62 experiment at CERN. Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019. editor / Etienne Auge ; Jacques Dumarchez ; Jean Tron Thanh Van. ARISF, 2020. pp. 315-320 (Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019).

@inproceedings{2fbae4f7f0114e50ab9d29788544f0fd,

title = "Search for LNV/LFV K+ decays at the NA62 experiment at CERN",

abstract = "New results are presented for the first time of searches for lepton number violating (LNV) decays K+ → π−e+e+ and K+ → π−μ+μ+ from the NA62 experiment at CERN using a subset of 2017 data. No LNV signals are observed and upper limits are set on the branching ratios, B(K+ → π−e+e+) < 2.2 × 10−10 and B(K+ → π−μ+μ+) < 4.2 × 10−11, at 90\% confidence level.",

author = "\{NA62 Collaboration\} and J. Swallow 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 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 V. Bonaiuto and M. Boretto and M. Bragadireanu and D. Britton and F. Brizioli and Brunetti, \{M. B.\} and D. Bryman and F. Bucci and T. Capussela and P. Cooper and \{de Simone\}, N. and V. Duk and V. Fascianelli and J. Fry and F. Gonnella and E. Goudzovski and C. Graham and H. Heath and L. Iacobuzio and Jones, \{R. W.\} and C. Lazzeroni and N. Lurkin and K. Massri and F. Newson and A. Norton and R. Page and C. Parkinson and P. Petrov and R. Piandani and A. Romano and A. Sergi and A. Sturgess and J. Swallow",

note = "Publisher Copyright: {\textcopyright} 2019 CERN for the benefit of the ATLAS and CMS Collaborations. CC-BY-4.0 license. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019 ; Conference date: 16-03-2019 Through 23-03-2019",

year = "2020",

language = "English",

series = "Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019",

publisher = "ARISF",

pages = "315--320",

editor = "Etienne Auge and Jacques Dumarchez and \{Tron Thanh Van\}, Jean",

booktitle = "Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019",

}

NA62 Collaboration 2020, Search for LNV/LFV K⁺ decays at the NA62 experiment at CERN. in E Auge, J Dumarchez & J Tron Thanh Van (eds), Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019. Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019, ARISF, pp. 315-320, 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019, La Thuile, Italy, 16/03/19.

Search for LNV/LFV K⁺ decays at the NA62 experiment at CERN. / NA62 Collaboration.
Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019. ed. / Etienne Auge; Jacques Dumarchez; Jean Tron Thanh Van. ARISF, 2020. p. 315-320 (Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Search for LNV/LFV K+ decays at the NA62 experiment at CERN

AU - NA62 Collaboration

AU - Swallow, J.

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 - 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 - Bonaiuto, V.

AU - Boretto, M.

AU - Bragadireanu, M.

AU - Britton, D.

AU - Brizioli, F.

AU - Brunetti, M. B.

AU - Bryman, D.

AU - Bucci, F.

AU - Capussela, T.

AU - Cooper, P.

AU - de Simone, N.

AU - Duk, V.

AU - Fascianelli, V.

AU - Fry, J.

AU - Gonnella, F.

AU - Goudzovski, E.

AU - Graham, C.

AU - Heath, H.

AU - Iacobuzio, L.

AU - Jones, R. W.

AU - Lazzeroni, C.

AU - Lurkin, N.

AU - Massri, K.

AU - Newson, F.

AU - Norton, A.

AU - Page, R.

AU - Parkinson, C.

AU - Petrov, P.

AU - Piandani, R.

AU - Romano, A.

AU - Sergi, A.

AU - Sturgess, A.

AU - Swallow, J.

PY - 2020

Y1 - 2020

N2 - New results are presented for the first time of searches for lepton number violating (LNV) decays K+ → π−e+e+ and K+ → π−μ+μ+ from the NA62 experiment at CERN using a subset of 2017 data. No LNV signals are observed and upper limits are set on the branching ratios, B(K+ → π−e+e+) < 2.2 × 10−10 and B(K+ → π−μ+μ+) < 4.2 × 10−11, at 90% confidence level.

AB - New results are presented for the first time of searches for lepton number violating (LNV) decays K+ → π−e+e+ and K+ → π−μ+μ+ from the NA62 experiment at CERN using a subset of 2017 data. No LNV signals are observed and upper limits are set on the branching ratios, B(K+ → π−e+e+) < 2.2 × 10−10 and B(K+ → π−μ+μ+) < 4.2 × 10−11, at 90% confidence level.

UR - https://www.scopus.com/pages/publications/85088919966

M3 - Conference contribution

AN - SCOPUS:85088919966

T3 - Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019

SP - 315

EP - 320

BT - Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019

A2 - Auge, Etienne

A2 - Dumarchez, Jacques

A2 - Tron Thanh Van, Jean

PB - ARISF

T2 - 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019

Y2 - 16 March 2019 through 23 March 2019

ER -

NA62 Collaboration. Search for LNV/LFV K⁺ decays at the NA62 experiment at CERN. In Auge E, Dumarchez J, Tron Thanh Van J, editors, Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019. ARISF. 2020. p. 315-320. (Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019).