Measurement of eta+- with the CPLEAR experiment
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Adler, R.
Alhalel, T.
Angelopoulos, A.
Apostolakis, A.
Aslanides, E.
Backenstoss, G.
Bargassa, P.
Bee, C. P.
Behnke, O.
Benelli, A.
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peer reviewed
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Nuclear Physics B
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The CPLEAR experiment at CERN uses time-dependent decay-rate asymmetries between K-0 and (K) over bar(0) to measure eta(+-). The analysis and the systematic errors are discussed. The preliminary results from all our data are phi(+-) = 43.5 degrees +/- 0.5(stat)degrees +/- 0.5(syst)+/-0.4(Delta m) and \eta(+-)\ = (2.316 +/- 0.025(stat) +/- 0.028(syst) +/- 0.009(tau S)) x 10(-3). The dominant part in the systematic error of phi(+-) is due to the regeneration correction. A dedicated experiment was performed to reduce this error considerably.
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<Go to ISI>://WOS:A1997XJ39200056
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Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών