| Article | |
| Title | Latest results on rare kaon decays from the NA48/2 experiment at CERN |
| Author(s) |
Raggi, Mauro (Rome U. ; INFN, Rome) ; 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 ; Cenci, P ; Cerri, C ; Cheshkov, C ; Chèze, J B ; Clemencic, M ; Collazuol, G ; Costantini, F ; Coward, D ; Cundy, D ; Dabrowski, A ; Dalpiaz, P ; Damiani, C ; Derré, J ; Dibon, H ; Dilella, L ; Doble, N ; Eppard, K ; Falaleev, V ; Fantechi, R ; Fidecaro, M ; Fiorini, L ; Fiorini, M ; Frabetti, P L ; Gatignon, L ; Gersabeck, E ; Gianoli, A ; Giudici, S ; Gonidec, A ; Goudzovski, E ; 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 ; Marel, G ; Markytan, M ; Marouelli, P ; Martini, M ; Masetti, L ; Mazzucato, E ; Michetti, A ; Mikulec, I ; Misheva, M ; Molokanova, N ; Monnier, E ; Moosbrugger, U ; 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 ; Shkarovskiy, S ; 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 ; Goy Lopez, S ; Morales Morales, C ; Fonseca Martin, T |
| Publication | SISSA, 2021 |
| Number of pages | 6 |
| In: | PoS ICHEP2020 (2021) 413 |
| In: | 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020, pp.413 |
| DOI | 10.22323/1.390.0413 |
| Subject category | Particle Physics - Experiment ; Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; NA48-2 |
| Abstract | The NA48/2 experiment at CERN reports the first observation of the K->pi0e+e-decay from an exposure of 1.7x10^11 charged kaon decays recorded in 2003-2004. A sample of 4919candidates with 4.9% background contamination allows the determination of the branching ratioin the full kinematic region. The study of the kinematic space shows evidence for a structuredependent contribution in agreement with predictions based on chiral perturbation theory. Several P- and CP-violating asymmetries are also evaluated. The most precise measurement of the charged kaon semi-leptonic form factors obtained by NA48/2 with 4.4 million Ke3 and 2.3 million Km3 events collected in 2004 will also be presented. |
| Copyright/License | publication: © 2021-2024 The author(s) (License: CC-BY-NC-ND-4.0) |
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Registre creat el 2021-11-17, darrera modificació el 2022-11-17