LIMIT ON ${{\mathit \mu}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}$ CONVERSION

Forbidden by total lepton number conservation.

${\mathit \sigma (}$ ${{\mathit \mu}^{-}}$ ${}^{32}\mathrm {S}$ $\rightarrow$ ${{\mathit e}^{+}}{}^{32}\mathrm {Si}^{*}{)}$ / ${\mathit \sigma (}$ ${{\mathit \mu}^{-}}$ ${}^{32}\mathrm {S}$ $\rightarrow$ ${{\mathit \nu}_{{\mu}}}{}^{32}\mathrm {P}^{*}{)}$

INSPIRE  
VALUE CL% DOCUMENT ID TECN  COMMENT
$\bf{<9 \times 10^{-10}}$ 90
BADERTSCHER
1980
STRC SIN
• • We do not use the following data for averages, fits, limits, etc. • •
$<1.5 \times 10^{-9}$ 90
BADERTSCHER
1978
STRC SIN
Conservation Laws:
TOTAL LEPTON NUMBER
References:
BADERTSCHER 1980
LNC 28 401 New Upper Limits for Muon-Electron Conversion in Sulfur
Also
NP A377 406 A Search for muon-electron and muon-positron Conversion in Sulfur
BADERTSCHER 1978
PL 79B 371 Search for ${{\mathit \mu}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}$ Conversion on Sulfur