A detailed description of the analysis of the decay of neutral kaons to $\pi^+ \pi^-$ in the CPLEAR experiment

A detailed description is given of the analysis of neutral kaons decaying to \pipi , based on the complete data sample collected with the CPLEAR experiment.Using a novel approach involving initially strangeness-tagged \kn\ and \knb ,the time-dependent decay rate asymmetry has been measured. This asy...

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Detalles Bibliográficos
Autores principales: Apostolakis, Alcibiades J, Aslanides, Elie, Backenstoss, Gerhard, Bargassa, P, Behnke, O, Benelli, A, Bertin, V, Blanc, F, Bloch, P, Carlson, P J, Carroll, M, Cawley, E, Chertok, M B, Danielsson, M, Dejardin, M, Derré, J, Ealet, A, Eleftheriadis, C, Fetscher, W, Fidecaro, Maria, Filipcic, A, Francis, D, Fry, J, Gabathuler, Erwin, Gamet, R, Gerber, H J, Go, A, Haselden, A, Hayman, P J, Henry-Coüannier, F, Hollander, R W, Jon-And, K, Kettle, P R, Kokkas, P, Kreuger, R, Le Gac, R, Leimgruber, F, Mandic, I, Manthos, N, Marel, Gérard, Mikuz, M, Miller, J, Montanet, François, Müller, A, Nakada, Tatsuya, Pagels, B, Papadopoulos, I M, Pavlopoulos, P, Polivka, G, Rickenbach, R, Roberts, B L, Ruf, T, Sakelliou, L, Schäfer, M, Schaller, L A, Schietinger, T, Schopper, A, Tauscher, Ludwig, Thibault, C, Touchard, F, Touramanis, C, van Eijk, C W E, Vlachos, S, Weber, P, Wigger, O, Wolter, M, Yéche, C, Zavrtanik, D, Zimmerman, D
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1007/s100520000504
http://cds.cern.ch/record/441316
Descripción
Sumario:A detailed description is given of the analysis of neutral kaons decaying to \pipi , based on the complete data sample collected with the CPLEAR experiment.Using a novel approach involving initially strangeness-tagged \kn\ and \knb ,the time-dependent decay rate asymmetry has been measured. This asymmetry, resulting from the interference between the \ks\and \kl\ decay amplitudes, has enabled both the magnitudeand phase of the CP-violation parameter, \ita , to be measured, with aprecision comparable to that of the current world average values.

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