Conference paper
Absolute branching ratio normalization for rare π+ and µ+ decays in the PIBETA experiment
Emil Frlež (PIBETA Collaboration)
; University of Virginia, Department of Physics, Charlottesville, VA 22904, USA
Abstract
We have used the PIBETA detector at the PSI for a precise measurement of rare pion and muon weak decays. We have collected a large statistical sample of (1) π + → e +νe, (2) π + → π0 e +νe, (3) π+ → e+νeγ, (4) µ+ → e+νeν¯µ, and (5) µ+ → e +νeν¯µγ decays. We have evaluated the absolute branching ratios for these processes by normalizing to the independently measured number of decaying π+’s (or µ+’s). We discuss the mutual consistency of the preliminary results.
Keywords
determination of CKM matrix elements; decays of pions and muons; properties of pions and muons
Hrčak ID:
305627
URI
Publication date:
1.3.2004.
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