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.

Swallow, J., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2020). Search for LNV/LFV K+ decays at the NA62 experiment at CERN. In Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019 (pp.315-320). ARISF.

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

Ammendola R.;Bonaiuto V.;Sargeni F.;
2020-01-01

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.
54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2019
Aosta Valley, ita
2019
Belgian Science Policy (BSP)
Rilevanza internazionale
2020
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Intervento a convegno
Swallow, J., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2020). Search for LNV/LFV K+ decays at the NA62 experiment at CERN. In Proceedings of the 54th Rencontres de Moriond - 2019 Electroweak Interactions and Unified Theories, EW 2019 (pp.315-320). ARISF.
Swallow, J; Aliberti, R; Ambrosino, F; Ammendola, R; Angelucci, B; Antonelli, A; Anzivino, G; Arcidiacono, R; Bache, T; Barbanera, M; Bernhard, J; Bia...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/253867
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