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First Measurement of the Rate $K^0_L \to \pi \mu \nu \gamma$ (1997) |
- Bender, M,
- Augustin, I,
- Holder, M,
- Schwarze, I,
- Ziolkowski, M,
- Fanti, V,
- Lai, A,
- Musa, L,
- Nappi, A,
- Setzu, M G,
- Moore, R W,
- Munday, D J,
- Parker, M A,
- Takach, S F,
- White, T O,
- Barr, Giles David,
- Bocquet, G,
- Bremer, J,
- Ceccucci, Augusto,
- Cogan, J,
- Cundy, Donald C,
- Doble, Niels T,
- Fischer, G,
- Funk, W,
- Gatignon, L,
- Gianoli, A,
- Gonidec, A,
- Grafström, P,
- Kubischta, Werner,
- Marzulli, V M,
- Kesseler, G,
- Matheys, J P,
- Norton, Alan Robert,
- Palestini, S,
- Panzer-Steindel, B,
- Schinzel, D,
- Taureg, Hans,
- Velasco, M,
- Vossnack, O,
- Kekelidze, V D,
- Kojevnikov, I,
- Potrebenikov, Yu K,
- Tatishvili, G T,
- Tkachev, A L,
- Bertolotto, L,
- Boyle, O,
- Hay, B,
- McKay, N E,
- Oakland, G,
- Parsons, H,
- Peach, Kenneth J,
- Talamonti, C,
- Walker, A,
- Dalpiaz, Pietro,
- Duclos, J,
- Formica, A,
- Martini, M,
- Petrucci, F,
- Porcu, M,
- Rossi, F,
- Savrié, M,
- Simani, C,
- Bizzeti, A,
- Calvetti, M,
- Lenti, M,
- Michetti, A,
- Becker, H G,
- Beier, T,
- Blümer, H,
- Buchholz, P,
- Coward, D H,
- Ebersberger, C,
- Kalter, A,
- Kleinknecht, K,
- Koch, U,
- Köpke, L,
- Leber, F,
- Luitz, S,
- Renk, B,
- Scheidt, J,
- Schmidt, J,
- Schönharting, V,
- Wilhelm, R,
- Zeitnitz, O,
- Chollet, J C,
- Crépé, S,
- Fayard, Louis,
- Iconomidou-Fayard, L,
- Ocariz, J,
- Unal, G,
- Anzivino, Giuseppina,
- Cenci, P,
- Lubrano, P,
- Pepé, M,
- Calafiura, P,
- Carosi, R,
- Casali, R,
- Cerri, C,
- Costantini, F,
- Fantechi, R,
- Giudici, Sergio,
- Gorini, B,
- Mannelli, I,
- Pierazzini, G M,
- Sozzi, M,
- Chèze, J B,
- De Beer, M,
- Debu, P,
- Khristov, P Z,
- Mazzucato, E,
- Peyaud, B,
- Schanne, S,
- Steinkamp, O,
- Turlay, René,
- Vallage, B,
- Arcidiacono, R,
- Biino, C,
- Govi, G,
- Maas, P,
- Marchetto, F,
- Menichetti, E,
- Dibon, Heinz,
- Jeitler, Manfred,
- Markytan, Manfred,
- Mikulec, I,
- Neuhofer, Günther,
- Pernicka, Manfred,
- Taurok, Anton
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Abstract |
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In a preliminary version of the NA48 experiment at the CERN SPS, in which an iron- scintillator sandwich calorimeter was used as a photon detector, the ratio of K$_L \to \pi\mu\nu\gamma$ and K$_L \to \pi\mu\nu$ decays was measured. The branching ratio BR(K$_L \to \pi\mu\nu\gamma, \mbox{E}_\gamma^*\ge30~\mbox{MeV}$)/(K$_L \to \pi\mu\nu$) is found to be $(2.08\pm0.17$ $^{+0.16}_{-0.21})\times10^{-3}$, where the first error is statistical and the second systematic. The result is in agreement with theoretical predictions. |
Publication details |
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