Measurement of the radiative decay K +→ π 0e +vγ at the NA62 experiment

Akmete, A; Aliberti, R; Ambrosino, F; Ammendola, R; Angelucci, B; Antonelli, A; Anzivino, G; Arcidiacono, R; Bache, T; Baeva, A; Baigarashev, D; Bandiera, L; Barbanera, M; Bernhard, J; Biagioni, A; Bician, L; Biino, C; Bizzeti, A; Blazek, T; Bloch-Devaux, B; Boboc, P; Bonaiuto, V; Boretto, M; Bragadireanu, M; Briano Olvera, A; Britton, D; Brizioli, F; Brunetti, Mb; Bryman, D; Bucci, F; Capussela, T; Carmignani, J; Ceccucci, A; Cenci, P; Cerny, V; Cerri, C; Checcucci, B; Conovalo, A; Cooper, P; Cortina Gil, E; Corvino, M; Costantini, F; Cotta Ramusino, A; Coward, D; Cretaro, P; D'Agostini, G; Dainton, J; Dalpiaz, P; Danielsson, H; D'Errico, M; De Simone, N; Di Filippo, D; Di Lella, L; Doble, N; Dobrich, B; Duval, F; Duk, V; Emelyanov, D; Engelfried, J; Enik, T; Estrada-Tristan, N; Falaleev, V; Fantechi, R; Fascianelli, V; Federici, L; Fedotov, S; Filippi, A; Fiorenza, R; Fiorini, M; Frezza, O; Fry, J; Fu, J; Fucci, A; Fulton, L; Gamberini, E; Gatignon, L; Georgiev, G; Ghinescu, S; Gianoli, A; Giorgi, M; Giudici, S; Gonnella, F; Gorshanov, K; Goudzovski, E; Graham, C; Guida, R; Gushchin, E; Hahn, F; Heath, H; Henshaw, J; Hives, Z; Holzer, Eb; Husek, T; Hutanu, O; Hutchcroft, D; Iacobuzio, L; Iacopini, E; Imbergamo, E; Jenninger, B; Jerhot, J; Jones, Rw; Kampf, K; Kekelidze, V; Kereibay, D; Kholodenko, S; Khoriauli, G; Khotyantsev, A; Kleimenova, A; Korotkova, A; Koval, M; Kozhuharov, V; Kucerova, Z; Kudenko, Y; Kunze, J; Kurochka, V; Kurshetsov, V; Lanfranchi, G; Lamanna, G; Lari, E; Latino, G; Laycock, P; Lazzeroni, C; Lenti, M; Lehmann Miotto, G; Leonardi, E; Lichard, P; Litov, L; Lo Chiatto, P; Lollini, R; Lomidze, D; Lonardo, A; Lubrano, P; Lupi, M; Lurkin, N; Madigozhin, D; Mannelli, I; Mapelli, A; Marchetto, F; Marchevski, R; Martellotti, S; Massarotti, P; Massri, K; Maurice, E; Mazzolari, A; Medvedeva, M; Mefodev, A; Menichetti, E; Migliore, E; Minucci, E; Mirra, M; Misheva, M; Molokanova, N; Moulson, M; Movchan, S; Napolitano, M; Neri, I; Newson, F; Norton, A; Noy, M; Numao, T; Obraztsov, V; Okhotnikov, A; Ostankov, A; Padolski, S; Page, R; Palladino, V; Panichi, I; Parenti, A; Parkinson, C; Pedreschi, E; Pepe, M; Perrin-Terrin, M; Peruzzo, L; Petrov, P; Petrov, Y; Petrucci, F; Piandani, R; Piccini, M; Pinzino, J; Polenkevich, I; Pontisso, L; Potrebenikov, Y; Protopopescu, D; Raggi, M; Reyes Santos, M; Romagnoni, M; Romano, A; Rubin, P; Ruggiero, G; Ryjov, V; Sadovsky, A; Salamon, A; Santoni, C; Saracino, G; Sargeni, F; Schuchmann, S; Semenov, V; Sergi, A; Shaikhiev, A; Shkarovskiy, S; Soldani, M; Soldi, D; Sozzi, M; Spadaro, T; Spinella, F; Sturgess, A; Sugonyaev, V; Swallow, J; Sytov, A; Tinti, G; Tomczak, A; Trilov, S; Turisini, M; Valente, P; Velghe, B; Venditti, S; Vicini, P; Volpe, R; Vormstein, M; Wahl, H; Wanke, R; Wong, V; Wrona, B; Yushchenko, O; Zamkovsky, M; A. Zinchenko.,

doi:10.1088/1742-6596/2446/1/012015

The NA62 experiment at CERN reports results from a study of radiative kaon decay K + → π 0 e + vγ, using a data sample recorded in the years 2017 and 2018. The sample comprises O(100k) candidates with sub-percent background contamination. Preliminary results of the most precise measurement of the corresponding branching ratio and with the measurement of the T-asymmetry parameter are presented.

Akmete, A., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2023). Measurement of the radiative decay K +→ π 0e +vγ at the NA62 experiment. In Journal of Physics: Conference Series (pp.012015). Institute of Physics [10.1088/1742-6596/2446/1/012015].