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T-violation and CPT-invariance measurements in the CPLEAR experiment: a detailed description of the analysis of neutral-kaon decays to e pi nu

Authors :
Angelopoulos, A Aslanides, E Backenstoss, G Bargassa, P and Behnke, O Benelli, A Bertin, V Blanc, F Bloch, P and Carlson, P Carroll, M Cawley, E Chertok, MB Danielsson, M Dejardin, M Derre, J Ealet, A Eleftheriadis, C and Fetscher, W Fidecaro, M Filipcic, A Francis, D Fry, J and Gabathuler, E Gamet, R Gerber, HJ Go, A Haselden, A and Hayman, PJ Henry-Couannier, F Hollander, RW Jon-And, K and Kettle, PR Kokkas, P Kreuger, R Le Gac, R and Leimgruber, F Mandic, I Manthos, N Marel, G Mikuz, M and Miller, J Montanet, F Muller, A Nakada, T Pagels, B and Papadopoulos, I Pavlopoulos, P Polivka, G Rickenbach, R and Roberts, BL Ruf, T Sakeliou, L Schafer, M Schaller, LA and Schietinger, T Schopper, A Tauscher, L Thibault, C and Touchard, F Touramanis, C Van Eijk, CWE Vlachos, S and Weber, P Wigger, O Wolter, M Zavrtanik, D Zimmerman, D and CPLEAR Collaboration
Publication Year :
2001

Abstract

A detailed description of the analysis of neutral kaons decaying to e pi nu is given, based on the complete set of data collected with the CPLEAR experiment, Using a novel approach involving initially strangeness-tagged K-0 and (K) over bar (0), time-dependent decay-rate asymmetries were measured, These asymmetries enabled T- and CPT-violation parameters to be measured in the context of a systematic study. The highlights of this study arc the first direct observation of T violation and the direct determination of the CPT parameter Re(delta) with an accuracy improved by two orders of magnitude with respect to the current value.

Subjects

Subjects :
High Energy Physics::Experiment

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.od......2127..2e4dfbc2b8bce7fe8bc0f2cb7a75505e

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