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

A. Apostolakis; E. Aslanides; G. Backenstoss; P. Bargassa; O. Behnke; A. Benelli; V. Bertin; F. Blanc; P. Bloch; P. Carlson; M. Carroll; E. Cawley; M B. Chertok; M. Danielsson; M. Dejardin; J. Derre; A. Ealet; C. Eleftheriadis; W. Fetscher; M. Fidecaro; A. Filipcic; D. Francis; J. Fry; E. Gabathuler; R. Gamet; H J. Gerber; A. Go; A. Haselden; P J. Hayman; F. Henry-Couannier; R W. Hollander; K. Jon-And; P R. Kettle; P. Kokkas; R. Kreuger; R. Le Gac; F. Leimgruber; I. Mandic; N. Manthos; G. Marel; M. Mikuz; J. Miller; F. Montanet; A. Muller; T. Nakada; B. Pagels; I. Papadopoulos; P. Pavlopoulos; G. Polivka; R. Rickenbach; B L. Roberts; T. Ruf; L. Sakelliou; M. Schafer; L A. Schaller; T. Schietinger; A. Schopper; L. Tauscher; C. Thibault; F. Touchard; C. Touramanis; C W E. van Eijk; S. Vlachos; P. Weber; O. Wigger; M. Wolter; C. Yeche; D. Zavrtanik; D. Zimmerman

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European Physical Journal C 18 (2000) 41-55

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

A. Apostolakis, E. Aslanides¹, G. Backenstoss, P. Bargassa, O. Behnke, A. Benelli, V. Bertin¹, F. Blanc, P. Bloch, P. Carlson, M. Carroll, E. Cawley, M B. Chertok, M. Danielsson, M. Dejardin, J. Derre, A. Ealet¹, C. Eleftheriadis, W. Fetscher, M. Fidecaro, A. Filipcic, D. Francis, J. Fry, E. Gabathuler, R. Gamet, H J. Gerber, A. Go, A. Haselden, P J. Hayman, F. Henry-Couannier¹, R W. Hollander, K. Jon-And, P R. Kettle, P. Kokkas, R. Kreuger, R. Le Gac¹, F. Leimgruber, I. Mandic, N. Manthos, G. Marel, M. Mikuz, J. Miller, F. Montanet¹, A. Muller, T. Nakada, B. Pagels, I. Papadopoulos, P. Pavlopoulos, G. Polivka, R. Rickenbach, B L. Roberts, T. Ruf, L. Sakelliou, M. Schafer, L A. Schaller, T. Schietinger, A. Schopper, L. Tauscher, C. Thibault², F. Touchard¹, C. Touramanis, C W E. van Eijk, S. Vlachos, P. Weber, O. Wigger, M. Wolter, C. Yeche, D. Zavrtanik, D. Zimmerman

CPLEAR Collaboration(s)

(2000)

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.

1 :	CPPM - Centre de Physique des Particules de Marseille

2 :	CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse

Thème(s)

Physique/Physique des Hautes Energies - Expérience

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Contributeur : Magali Damoiseaux <>
Soumis le : Jeudi 11 Janvier 2001, 11:19:46
Dernière modification le : Jeudi 11 Janvier 2001, 11:19:46