Study of $\pi^0$ Dalitz decays in the NA62 and NA48/2 experiments

The NA62 experiment at CERN collected a large sample of charged kaon decays with a highly efficient trigger for decays into electrons in 2007. The kaon beam represents a source of tagged neutral pion decays in vacuum. A measurement of the electromagnetic transition form factor slope of the neutral p...

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Detalles Bibliográficos
Autores principales: Maurice, E, Ambrosino, F, Antonelli, A, Anzivino, G, Arcidiacono, R, Baldini, W, Balev, S, Bifani, S, Biino, C, Bizzeti, A, Bloch-Devaux, B, Bolotov, V, Bucci, F, Ceccucci, A, Cenci, P, Cerri, C, Collazuol, G, Costantini, F, Cotta Ramusino, A, Coward, D, D'Agostini, G, Dalpiaz, P, Danielsson, H, Dellacasa, G, Di Filippo, D, DiLella, L, Doble, N, Duk, V, Engelfried, J, Eppard, K, Falaleev, V, Fantechi, R, Fiorini, M, Frabetti, P L, Fucci, A, Gallorini, S, Gatignon, L, Gersabeck, E, Gianoli, A, Giudici, S, Goudzovski, E, Goy Lopez, S, Gushchin, E, Hallgren, B, Hita-Hochgesand, M, Iacopini, E, Imbergamo, E, Kekelidze, V, Kleinknecht, K, Kozhuharov, V, Kurshetsov, V, Lamanna, G, Lazzeroni, C, Lenti, M, Leonardi, E, Litov, L, Madigozhin, D, Maier, A, Mannelli, I, Marchetto, F, Massarotti, P, Misheva, M, Molokanova, N, Moulson, M, Movchan, S, Napolitano, M, Norton, A, Numao, T, Obraztsov, V, Palladino, V, Pepe, M, Peters, A, Petrucci, F, Peyaud, B, Piandani, R, Piccini, M, Pierazzini, G, Popov, I, Potrebenikov, Yu, Raggi, M, Renk, B, Retière, F, Riedler, P, Romano, A, Rubin, P, Ruggiero, G, Salamon, A, Saracino, G, Savrié, M, Semenov, V, Sergi, A, Serra, M, Shkarovskiy, S, Sozzi, M, Spadaro, T, Valente, P, Veltri, M, Venditti, S, Wahl, H, Wanke, R, Winhart, A, Winston, R, Yushchenko, O, Zinchenko, A
Lenguaje:eng
Publicado: 2017
Materias:
Nuclear Physics - Experiment
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysbps.2016.12.020
http://cds.cern.ch/record/2291431
Descripción
Sumario:The NA62 experiment at CERN collected a large sample of charged kaon decays with a highly efficient trigger for decays into electrons in 2007. The kaon beam represents a source of tagged neutral pion decays in vacuum. A measurement of the electromagnetic transition form factor slope of the neutral pion in the time-like region from ∼1 million fully reconstructed $\pi^0$ Dalitz decay is presented. The limits on dark photon production in $\pi^0$ decays from the earlier kaon experiment at CERN, NA48/2, are also reported.

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