$\bf{
3.8 \pm0.6}$
|
OUR AVERAGE
Error includes scale factor of 1.8.
|
$4.95$ ${}^{+0.75}_{-0.70}$ ${}^{+1.01}_{-0.24}$ |
|
1 |
|
BABR |
$5.12$ $\pm0.60$ $\pm0.63$ |
111 |
2 |
|
CLE2 |
$3.30$ $\pm0.33$ $\pm0.20$ |
|
3 |
|
CSB2 |
1
From a sample of ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ with one converted photon.
|
2
CRAWFORD 1992B quotes 2${\times }$B( ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{bJ}}{(2P)}}$ ) B( ${{\mathit \chi}_{{bJ}}{(2P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(nS)}}$ ) B( ${{\mathit \Upsilon}{(nS)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ ).
|
3
Calculated by us. HEINTZ 1992 quotes B( ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{b1}}{(2P)}}$ )${\times }$B( ${{\mathit \chi}_{{b1}}{(2P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(2S)}}$ ) = ($2.29$ $\pm0.23$ $\pm0.21$) $\%$ usingB( ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ ) = ($1.44$ $\pm0.10)\%$.
|