A precise measurement of the direct CP violation parameter $Re(\epsilon\prime/\epsilon)

A precise measurement of the direct CP violation parameter $Re(\epsilon\prime/\epsilon)

The direct CP violation parameter Re(epsilon'/epsilon) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. With 3.3 million KL->pi0pi0 events collected during the 1998 and 1999 running periods, a result of Re(epsilon'/epsilon)...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Vol. 22; pp. 231 - 254
Main Authors: Lai, A., Chollet, J.C., Crepe, S., Fayard, L., Iconomidou-Fayard, L., Ocariz, J., Unal, G., Wingerter-Seez, I.
Format: Journal Article
Language:English
Published: Springer Verlag (Germany) 2001
Subjects:
High Energy Physics - Experiment
Physics
Online Access:Get full text
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Summary:The direct CP violation parameter Re(epsilon'/epsilon) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. With 3.3 million KL->pi0pi0 events collected during the 1998 and 1999 running periods, a result of Re(epsilon'/epsilon) = (15.0 +- 2.7)x10-4 has been obtained. The result combined with the published 1997 sample is Re(epsilon'/epsilon) = (15.3 +- 2.6)x10-4.
ISSN:1434-6044
1434-6052
DOI:10.1007/s100520100822