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Determination of the relative decay rate KS $\to \pi e \nu$ / KL $\to \pi e \nu$ (2007) |
- Batley, J R,
- Kalmus, George Ernest,
- Lazzeroni, C,
- Munday, D J,
- Patel, M,
- Slater, M W,
- Wotton, S A,
- Arcidiacono, R,
- Bocquet, G,
- Ceccucci, A,
- Cundy, Donald C,
- Doble, N,
- Falaleev, V,
- Gatignon, L,
- Gonidec, A,
- Grafström, P,
- Kubischta, Werner,
- Marchetto, F,
- Mikulec, I,
- Norton, A,
- Panzer-Steindel, B,
- Rubin, P,
- Wahl, H,
- Goudzovski, E,
- Khristov, P Z,
- Kekelidze, V,
- Litov, L,
- Madigozhin, D T,
- Molokanova, N,
- Potrebenikov, Yu,
- Stoynev, S,
- Zinchenko, A,
- Monnier, E,
- Swallow, E,
- Winston, R,
- Sacco, R,
- Walker, A,
- Baldini, W,
- Dalpiaz, P,
- Frabetti, P L,
- Gianoli, A,
- Martini, M,
- Petrucci, F,
- Scarpa, M,
- Savrié, M,
- Bizzeti, A,
- Calvetti, M,
- Collazuol, G,
- Graziani, G,
- Iacopini, E,
- Lenti, M,
- Martelli, F,
- Ruggiero, G,
- Veltri, M,
- Behler, M,
- Eppard, K,
- Eppard, M,
- Hirstius, A,
- Kleinknecht, K,
- Koch, U,
- Masetti, L,
- Marouelli, P,
- Moosbrugger, U,
- Morales-Morales, C,
- Peters, A,
- Wanke, R,
- Winhart, A,
- Dabrowski, A,
- Fonseca-Martin, T,
- Goy-Lopez, S,
- Velasco, M,
- Anzivino, Giuseppina,
- Cenci, P,
- Imbergamo, E,
- Lamanna, G,
- Lubrano, P,
- Michetti, A,
- Nappi, A,
- Pepé, M,
- Petrucci, M C,
- Piccini, M,
- Valdata, M,
- Cerri, C,
- Costantini, F,
- Fantechi, R,
- Fiorini, L,
- Giudici, S,
- Mannelli, I,
- Pierazzini, G,
- Sozzi, M,
- Cheshkov, C,
- Chèze, J B,
- De Beer, M,
- Debu, P,
- Gouge, G,
- Marel, Gérard,
- Mazzucato, E,
- Peyaud, B,
- Vallage, B,
- Holder, M,
- Maier, A,
- Ziolkowski, M,
- Biino, C,
- Cartiglia, N,
- Clemencic, M,
- Menichetti, E,
- Pastrone, N,
- Wislicki, W,
- Dibon, Heinz,
- Jeitler, Manfred,
- Markytan, Markytan,
- Neuhofer, G,
- Widhalm, L
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Abstract |
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The decay rate of KS $\to \pi e \nu$ relative to the rate of KL $\to \pi e \nu$ has been measured by the NA48 collaboration in a neutral Kaon beam originating from 400 GeV proton-Be interactions at the CERN SPS. The result is 0.993±0.026stat±0.022syst, compatible with 1 in agreement with the Standard Model prediction at tree level. It implies BR(KS$\to\pi e \nu$) = (7.05 ± 0.18stat. ± 0.16syst.) × 10−4. |
Publication details |
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