The flavour-changing neutral current decay K+→π+μ+μ− is induced at the one-loop level in the Standard Model, and is well suited to explore its structure and, possibly, its extensions. The NA62 experiment took data in 2016–2018 with the main goal of measuring the K+→π+ν+ν− decay. A scaled down di-muon trigger chain was operating along with the main trigger during the whole data taking period resulting in a large sample of about 3×1012 kaon decays in the fiducial volume recorded using the di-muon trigger. New results from an analysis of the K+→π+μ+μ− decay using this sample will be presented.

Aliberti, R., Ambrosino, F., Am- mendola, R., Angelucci, B., Antonelli, A., Anzivino, G., et al. (2022). New measurement of the K+ → π+μ+μ− decay at NA62. NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS, 318-323, 155-159 [10.1016/j.nuclphysbps.2022.11.003].

New measurement of the K+ → π+μ+μ− decay at NA62

V. Bonaiuto;F. Sargeni;
2022-01-01

Abstract

The flavour-changing neutral current decay K+→π+μ+μ− is induced at the one-loop level in the Standard Model, and is well suited to explore its structure and, possibly, its extensions. The NA62 experiment took data in 2016–2018 with the main goal of measuring the K+→π+ν+ν− decay. A scaled down di-muon trigger chain was operating along with the main trigger during the whole data taking period resulting in a large sample of about 3×1012 kaon decays in the fiducial volume recorded using the di-muon trigger. New results from an analysis of the K+→π+μ+μ− decay using this sample will be presented.
2022
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
English
Kaon
NA62
Rare decay
Aliberti, R., Ambrosino, F., Am- mendola, R., Angelucci, B., Antonelli, A., Anzivino, G., et al. (2022). New measurement of the K+ → π+μ+μ− decay at NA62. NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS, 318-323, 155-159 [10.1016/j.nuclphysbps.2022.11.003].
Aliberti, R; Ambrosino, F; Am- mendola, R; Angelucci, B; Antonelli, A; Anzivino, G; Arcidia- cono, R; Bache, T; Baeva, A; Baigarashev, D; Barbanera, M...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/391624
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