Precision measurement of the form factors of semileptonic charged kaon decays from NA48/2

We present a measurement of the charged kaon semileptonic form factors based on 4.3 million $K^± → π^0 e^± \nu_e$ and 2.9 million $K^± → π^0 μ^± \nu_μ$ decays collectedby the NA48/2 experiment. The single results for the semi-electronic and semi-muonic channel have better and similar precision, resp...

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Detalles Bibliográficos
Autores principales: Shkarovskiy, S, Anzivino, G, Arcidiacono, R, Baldini, W, Balev, S, Batley, J R, Behler, M, Bifani, S, Biino, C, Bizzeti, A, Bloch-Devaux, B, Bocquet, G, Cabibbo, N, Calvetti, M, Cartiglia, N, Ceccucci, A, Celeghini, E, Cenci, P, Cerri, C, Cheshkov, C, Chèze, J B, Clemencic, M, Collazuol, G, Costantini, F, Cotta Ramusino, A, Coward, D, Cundy, D, Dabrowski, A, Dalpiaz, P, Damiani, C, De Beer, M, Derré, J, Dibon, H, DiLella, L, Doble, N, Eppard, K, Falaleev, V, Fantechi, R, Fidecaro, M, Fiorini, L, Fiorini, M, Fonseca Martin, T, Frabetti, P L, Gatignon, L, Gersabeck, E, Gianoli, A, Giudici, S, Gonidec, A, Goudzovski, E, Goy Lopez, S, Hita-Hochgesand, M, Holder, M, Hristov, P, Iacopini, E, Imbergamo, E, Jeitler, M, Kalmus, G, Kekelidze, V, Kleinknecht, K, Kozhuharov, V, Kubischta, W, Lamanna, G, Lazzeroni, C, Lenti, M, Litov, L, Madigozhin, D, Maier, A, Mannelli, I, Marchetto, F, Marchevski, R, Marel, G, Markytan, M, Marouelli, P, Martini, M, Masetti, L, Mazzucato, E, Michetti, A, Mikulec, I, Misheva, M, Molokanova, N, Monnier, E, Moosbrugger, U, Morales Morales, C, Munday, D J, Nappi, A, Neuhofer, G, Norton, A, Patel, M, Pepe, M, Peters, A, Petrucci, F, Petrucci, M C, Peyaud, B, Piccini, M, Pierazzini, G, Polenkevich, I, Potrebenikov, Yu, Raggi, M, Renk, B, Rubin, P, Ruggiero, G, Savrié, M, Scarpa, M, Shieh, M, Slater, M W, Sozzi, M, Stoynev, S, Swallow, E, Szleper, M, Valdata-Nappi, M, Vallage, B, Velasco, M, Veltri, M, Venditti, S, Wache, M, Wahl, H, Walker, A, Wanke, R, Widhalm, L, Winhart, A, Winston, R, Wood, M D, Wotton, S A, Zinchenko, A, Ziolkowski, M
Lenguaje:eng
Publicado: 2018
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2706420
Descripción
Sumario:We present a measurement of the charged kaon semileptonic form factors based on 4.3 million $K^± → π^0 e^± \nu_e$ and 2.9 million $K^± → π^0 μ^± \nu_μ$ decays collectedby the NA48/2 experiment. The single results for the semi-electronic and semi-muonic channel have better and similar precision, respectively, than previousmeasurements. The combination of both channels yields the most precisemeasurement of the form factors of semileptonic kaon decays.

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