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Title Precision measurement of the form factors of semileptonic charged kaon decays from NA48/2
Author(s)

Shkarovskiy, S (Dubna, JINR) ; 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

Publication 2018
Number of pages 4
In: 53rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 17 - 24 Mar 2018, pp.315-318
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; NA48/2
Abstract 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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