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Status Update of PSI Experiment R-89.01.1

A PRECISE MEASUREMENT OF THE DECAY RATE

THE PIBETA COLLABORATION

23 November 1995

The PIBETA project at PSI is a program of measurements with the aim of making a precise determination of the pion beta decay rate, initially to 0.5%. Significant delays as well as developments have occurred in this project since the original approval by the BV in 1992. The purpose of this document is to present a condensed update of the experimental method and the associated systematics.



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    Bernward Krause
    Mon Jan 29 08:39:51 MET 1996