${{\mathit \pi}^{+}}$ $-$ POLARIZATION OF EMITTED ${{\mathit \mu}^{+}}$

${{\mathit \pi}^{+}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \nu}}$

INSPIRE   PDGID:
S008POL
Tests the Lorentz structure of leptonic charged weak interactions.
VALUE CL% DOCUMENT ID TECN CHG  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$\text{<(-0.9959)}$ 90 1
FETSCHER
1984
RVUE +
$-0.99$ $\pm0.16$ 2
ABELA
1983
SPEC - ${{\mathit \mu}}$ $\mathit X$-rays
1  FETSCHER 1984 uses only the measurement of CARR 1983.
2  Sign of measurement reversed in ABELA 1983 to compare with ${{\mathit \mu}^{+}}$ measurements.
References