Measurement of the Radiative Ke3 Branching Ratio

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We present a measurement of the relative branching ratio of the decay KL -> pi e nu gamma (Ke3gamma) with respect to KL-> pi e nu (gamma) (Ke3+Ke3gamma) decay. The result is based on observation of 19 000 Ke3gamma and 5.6 x 10^6 Ke3 decays. The value of the branching ratio is Br(Ke3gamma, Egam...

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Detalles Bibliográficos
Autores principales: Anzivino, Giuseppina, Barr, G, Becker, H G, Bertanza, L, Bevan, A, Biino, C, Bocquet, G, Calvetti, M, Carosi, R, Cartiglia, N, Casali, R, Ceccucci, A, Cenci, P, Cerri, C, Cheshkov, C, Chèze, J B, Chollet, J C, Cirilli, M, Cogan, J, Collazuol, G, Contalbrigo, M, Costantini, F, Çuhadar-Dönszelmann, T, Cundy, Donald C, D'Agostini, G, Dalpiaz, Pietro, De Beer, M, Debu, P, Dibon, Heinz, Doble, Niels T, Dosanjh, R S, Duclos, J, Eppard, K, Eppard, M, Falaleev, V, Fantechi, R, Fayard, L, Fischer, G, Formica, A, Fox, H, Frabetti, P L, Gatignon, L, Gershon, T J, Gianoli, A, Giudici, Sergio, Gonidec, A, Gorini, B, Govi, G, Grafström, P, Granier de Cassagnac, R, Graziani, G, Hay, B, Holder, M, Khristov, P Z, Iacopini, E, Iconomidou-Fayard, L, Imbergamo, E, Jeitler, Manfred, Kalmus, George Ernest, Kalter, A, Kekelidze, Vladimir D, Kleinknecht, K, Knowles, I, Koch, U, Köpke, L, Kubischta, Werner, Lacourt, A, Lai, A, Lazzeroni, C, Lenti, M, Litov, L, Lopes da Silva, P, Lubrano, P, Madigozhin, D T, Maier, A, Mannelli, I, Marchetto, F, Markytan, Manfred, Marouelli, P, Marras, D, Martelli, F, Martin, V, Martini, M, Mazzucato, E, Menichetti, E, Mestvirishvili, A, Mikulec, I, Molokanova, N A, Munday, D J, Nappi, A, Nassalski, J P, Neuhofer, G, Norton, A, Ocariz, J, Olaiya, E, Palestini, S, Panzer-Steindel, B, Parker, M A, Pastrone, N, Pellmann, I A, Pepé, M, Pernicka, M, Peters, A, Petrucci, F, Peyaud, B, Piccini, M, Pierazzini, G M, Potrebenikov, Yu K, Renk, B, Rondio, Ewa, Sacco, R, Savrié, M, Schmidt, S A, Schönharting, V, Schué, Yu, Sozzi, M, Stoynev, S, Szleper, M, Taureg, H, Taurok, A, Turlay, René, Unal, G, Vallage, B, Velasco, M, Veltri, M, Wahl, H, Walker, A, Wanke, R, White, T O, Widhalm, L, Wingerter-Seez, I, Winhart, A, Wislicki, W, Wittgen, M, Wotton, S A, Wronka, S, Zinchenko, A I, Ziolkowski, M
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/806664
Descripción
Sumario:We present a measurement of the relative branching ratio of the decay KL -> pi e nu gamma (Ke3gamma) with respect to KL-> pi e nu (gamma) (Ke3+Ke3gamma) decay. The result is based on observation of 19 000 Ke3gamma and 5.6 x 10^6 Ke3 decays. The value of the branching ratio is Br(Ke3gamma, Egamma^*>30 MeV,theta(e,gamma)^*>20^o)/Br(Ke3)= (0.964+-0.008+0.011-0.009)%. This result agrees with theoretical predictions but is at variance with a recently published result.

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