The CERN NA62 experiment is dedicated to rare kaon decays. Data collected during Run1 (2016-2017-2018) already constitute the largest sample ever of detected K+ decays and offer unprecedented opportunities to test the SM or to search for New Physics in a variety of rare kaon and pion decays. The preliminary NA62 precision measurement of the pi(0) -> e(+)e(-) decay branching fraction is reported in the following, together with the recently published study of the K+ -> pi(+)gamma gamma decay and the first search for an axion-like particle (a) coupling to gluons in the decay chain K+ -> pi(+)a, a -> gamma gamma.

Akmete, A., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2025). New results from analyses of rare K+ and π decays at NA62. IL NUOVO CIMENTO C, 48(3) [10.1393/ncc/i2025-25091-4].

New results from analyses of rare K+ and π decays at NA62

Bonaiuto, V;Sargeni, F;
2025-03-01

Abstract

The CERN NA62 experiment is dedicated to rare kaon decays. Data collected during Run1 (2016-2017-2018) already constitute the largest sample ever of detected K+ decays and offer unprecedented opportunities to test the SM or to search for New Physics in a variety of rare kaon and pion decays. The preliminary NA62 precision measurement of the pi(0) -> e(+)e(-) decay branching fraction is reported in the following, together with the recently published study of the K+ -> pi(+)gamma gamma decay and the first search for an axion-like particle (a) coupling to gluons in the decay chain K+ -> pi(+)a, a -> gamma gamma.
mar-2025
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
English
Akmete, A., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2025). New results from analyses of rare K+ and π decays at NA62. IL NUOVO CIMENTO C, 48(3) [10.1393/ncc/i2025-25091-4].
Akmete, A; Aliberti, R; Ambrosino, F; Ammendola, R; Angelucci, B; Antonelli, A; Anzivino, G; Arcidiacono, R; Bache, T; Baeva, A; Baigarashev, D; Bandi...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/429943
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