LIMIT ON ${{\boldsymbol \mu}^{-}}$ $\rightarrow$ ${{\boldsymbol e}^{+}}$ CONVERSION
Forbidden by total lepton number conservation.
${\boldsymbol \sigma (}$ ${{\boldsymbol \mu}^{-}}$ ${}^{}\mathrm {Cu}$ $\rightarrow$ ${{\boldsymbol e}^{+}}{}^{}\mathrm {Co}{)}$ / ${\boldsymbol \sigma (}$ ${{\boldsymbol \mu}^{-}}$ ${}^{}\mathrm {Cu}$ $\rightarrow$ ${{\boldsymbol \nu}_{{\mu}}}{}^{}\mathrm {Ni}{)}$
INSPIRE search
• • • We do not use the following data for averages, fits, limits, etc. • • • |
$<2.6 \times 10^{-8}$ |
90 |
|
|
SPEC |
$<2.2 \times 10^{-7}$ |
90 |
|
|
OSPK |
|
References: |
| PRL 28 1469 |
Search for the Reaction ${{\mathit \mu}^{-}}$ ${}^{}\mathrm {Cu}$ $\rightarrow$ ${{\mathit e}^{+}}{}^{}\mathrm {Co}$ |
| NC 26 261 |
Search for Neutrinoless Coherent Nuclear Capture of ${{\mathit \mu}^{-}}$ Mesons |
|