Searches for lepton number violation and resonances in K±→πμμ decays

The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003–2004. A new upper limit on the rate of the lepton number violating decay K±→π∓μ±μ± is reported: B(K±→π∓μ±μ±)

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Veröffentlicht in:	Physics letters. B 2017-06, Vol.769 (C), p.67-76
Hauptverfasser:	Kalmus, G., Lazzeroni, C., Munday, D.J., Wotton, S.A., Bocquet, G., Cabibbo, N., Ceccucci, A., Fidecaro, M., Gatignon, L., Kubischta, W., Maier, A., Massri, K., Norton, A., Patel, M., Peters, A., Balev, S., Gersabeck, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Molokanova, N., Polenkevich, I., Potrebenikov, Yu, Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrié, M., Scarpa, M., Wahl, H., Bizzeti, A., Lenti, M., Veltri, M., Calvetti, M., Celeghini, E., Iacopini, E., Ruggiero, G., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Morales Morales, C., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Fonseca Martin, T., Shieh, M., Szleper, M., Velasco, M., Wood, M.D., Cenci, P., Pepe, M., Anzivino, G., Nappi, A., Raggi, M., Cerri, C., Fantechi, R., Collazuol, G., DiLella, L., Lamanna, G., Mannelli, I., Michetti, A., Costantini, F., Doble, N., Fiorini, L., Giudici, S., Pierazzini, G., Sozzi, M., Bloch-Devaux, B., Cheshkov, C., De Beer, M., Derré, J., Marel, G., Mazzucato, E., Peyaud, B., Holder, M., Ziolkowski, M., Marchetto, F., Bifani, S., Clemencic, M., Jeitler, M., Markytan, M., Mikulec, I., Neuhofer, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Beschreibung
Zusammenfassung:	The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003–2004. A new upper limit on the rate of the lepton number violating decay K±→π∓μ±μ± is reported: B(K±→π∓μ±μ±)
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2017.03.029