$\bf{
2.9 \pm0.4}$
|
OUR AVERAGE
Error includes scale factor of 1.9.
|
$3.52$ ${}^{+0.28}_{-0.27}$ ${}^{+0.17}_{-0.18}$ |
|
1 |
|
BABR |
$3.24$ $\pm0.56$ $\pm0.41$ |
58 |
2 |
|
CLE2 |
$2.34$ $\pm0.28$ $\pm0.15$ |
|
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( ${{\mathit \chi}_{{b1}}{(2P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$ ) = ($0.91$ $\pm0.11$ $\pm0.06)\%$ using B( ${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ ) =($2.57$ $\pm0.05)\%$.
|