${{\mathit \Sigma}^{+}}$ BRANCHING RATIOS

INSPIRE   PDGID:
S019R7
Test of $\Delta \mathit S$ = $\Delta \mathit Q$ rule.
VALUE EVTS DOCUMENT ID TECN
$\bf{ <0.043}$ OUR LIMIT  Our 90$\%$ CL limit, using [$\Gamma\mathrm {( {{\mathit \Sigma}^{+}} \rightarrow {{\mathit n}} {{\mathit \mu}^{+}} {{\mathit \nu}_{{\mu}}} )}$ + $\Gamma\mathrm {( {{\mathit \Sigma}^{+}} \rightarrow {{\mathit n}} {{\mathit e}^{+}} {{\mathit \nu}_{{e}}} )}]/\Gamma\mathrm {( {{\mathit \Sigma}^{+}} \rightarrow {{\mathit n}} {{\mathit \pi}^{+}} )}$.
• • We do not use the following data for averages, fits, limits, etc. • •
$<0.08$ 1
NORTON
1969
HBC
$<0.034$ 0
BAGGETT
1967
HBC
Conservation Laws:
$\Delta \mathit S$ = $\Delta \mathit Q$ RULE
References:
NORTON 1969
Thesis Nevis 175 ${{\mathit \Sigma}}$ Leptonic Branching Ratios
BAGGETT 1967
PRL 19 1458 New Experimental Limit on $\Delta \mathit S$ = $−\Delta \mathit Q$ Leptonic Decays of ${{\mathit \Sigma}^{+}}$ Hyperons
Also
Vienna Abs. 374 Vienna Abs. 374
Also
Private Comm. Private Communication