The neutral pion form factor at NA62

Aglieri Rinella, G; Aliberti, R; Ambrosino, F; Ammendola, R; Angelucci, B; Antonelli, A; Anzivino, G; Arcidiacono, R; Azhinenko, I; Balev, S; Barbanera, M; Bendotti, J; Biagioni, A; Bician, L; Biino, C; Bizzeti, A; Blazek, T; Blik, A; Bloch Devaux, B; Bolotov, V; Bonaiuto, V; Boretto, M; Bragadireanu, M; Britton, D; Britvich, G; Brunetti, Mb; Bryman, D; Bucci, F; Butin, F; Capitolo, E; Capoccia, C; Capussela, T; Cassese, A; Catinaccio, A; Cecchetti, A; Ceccucci, A; Cenci, P; Cerny, V; Cerri, C; Checcucci, B; Chikilev, O; Chiozzi, S; Ciaranfi, R; Collazuol, G; Conovaloff, A; Cooke, P; Cooper, P; Corradi, G; Cortinagil, E; Costantini, F; Cotorobai, F; Cottaramusino, A; Coward, D; D'Agostini, G; Dainton, J; Dalpiaz, P; Danielsson, H; Degrange, J; Desimone, N; Difilippo, D; Dilella, L; Dilorenzo, S; Dixon, N; Doble, N; Dobrich, B; Duk, V; Elsha, V; Engelfried, J; Enik, T; Estrada, N; Falaleev, V; Fantechi, R; Fascianelli, V; Federici, L; Fedotov, S; Fiorini, M; Fry, J; Fu, J; Fucci, A; Fulton, L; Galeotti, S; Gallorini, S; Gamberini, E; Gatignon, L; Georgiev, G; Gianoli, A; Giorgi, M; Giudici, S; Glonti, L; Goncalvesmartins, A; Gonnella, F; Goudzovski, E; Guida, R; Gushchin, E; Hahn, F; Hallgren, B; Heath, H; Herman, F; Husek, T; Hutanu, O; Hutchcroft, D; Iacobuzio, L; Iacopini, E; Imbergamo, E; Jamet, O; Jarron, P; Jones, E; Joneskkampf, T; Kaplon, J; Kekelidze, V; Kholodenko, S; Khoriauli, G; Khotyantsev, A; Khudyakov, A; Kiryushin, Y; Kleimenova, A; Kleinknecht, K; Kluge, A; Koval, M; Kozhuharov, V; Krivda, M; Kucerova, Z; Kudenko, Y; Kunze, J; Lamanna, G; Latino, G; Lazzeroni, C; Lehmann Miotto, G; Lenci, R; Lenti, M; Leonardi, E; Lichard, P; Lietava, R; Litov, L; Lollini, R; Lomidze, D; Lonardo, A; Lupi, M; Lurkin, N; Madigozhin, D; Maire, G; Mandeiro, C; Mannelli, I; Mannocchi, G; Mapelli, A; Marchetto, F; Marchevski, R; Martellotti, S; Massarotti, P; Massri, K; Matak, P; Maurice, E; Mccormick, K; Mefodev, A; Menichetti, E; Minucci, E; Mirra, M; Misheva, M; Molokanova, N; Morant, J; Morel, M; Moulson, M; Movchan, S; Munday, D; Napolitano, M; Neri, I; Newson, F; Norton, A; Noy, M; Nuessle, G; Numao, T; Obraztsov, V; Ostankov, A; Padolski, S; Page, R; Palladino, V; Paoluzzi, G; Parkinson, C; Pedreschi, E; Pepe, M; Perezgomez, F; Perrin Terrin, M; Peruzzo, L; Petrov, P; Petrucci, F; Piandani, R; Piccini, M; Pietreanu, D; Pinzino, J; Polenkevich, I; Pontisso, L; Potrebenikov, Y; Protopopescu, D; Raffaelli, F; Raggi, M; Riedler, P; Romano, A; Rubin, P; Ruggiero, G; Russo, V; Ryjov, V; Salamon, A; Salina, G; Samsonov, V; Santoni, C; Saracino, G; Sargeni, F; Semenov, V; Sergi, A; Serra, M; Shaikhiev, A; Shkarovskiy, S; Skillicorn, I; Soldi, D; Sotnikov, A; Sozzi, M; Spadaro, T; Spinella, F; Staley, R; Sturgess, A; Sugonyaev, V; Sutclie, P; Szilasi, N; Tagnani, D; Trilov, S; Valdata Nappi, M; Valente, P; Vasile, M; Vassilieva, T; Velghe, B; Veltri, M; Venditti, S; Vicini, P; Volpe, R; Vormstein, M; Wahl, H; Wanke, R; Wertelaers, P; Winhart, A; Winston, R; Wrona, B; Yushchenko, O; Zamkovsky, M; Zinchenko, A

doi:10.1088/1742-6596/770/1/012035

In 2007 the NA62 experiment at CERN collected a large sample of charged kaon decays with a highly efficient trigger selecting events with electrons in the final state. The kaon beam represents a rich source of tagged neutral pion decays in vacuum. The electromagnetic transition form factor slope of the π0 in the time-like region has been measured from about 106 fully reconstructed π0 Dalitz decays collected in 2007. The preliminary result a = (3.68 ± 0.51stat ± 0.25syst) × 10-2 is the most precise to date. This value is compatible with theoretical expectations and consistent with the previous measurements.

Aglieri Rinella, G., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2016). The neutral pion form factor at NA62. JOURNAL OF PHYSICS. CONFERENCE SERIES, 770(1) [10.1088/1742-6596/770/1/012035].