${{\mathit \chi}_{{{b0}}}{(2P)}}$ BRANCHING RATIOS

B( ${{\mathit \chi}_{{{b0}}}{(2P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(2S)}}$) ${\times }$ B( ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b0}}}{(2P)}}$) ${\times }$ B( ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$)

INSPIRE   PDGID:
M079A03
VALUE ($ 10^{-5} $) DOCUMENT ID TECN  COMMENT
$\bf{ 4.4 \pm1.6}$ OUR AVERAGE
$6.6$ ${}^{+4.9}_{-4.0}$ ${}^{+2.0}_{-0.3}$ 1
LEES
2014M
 BABR ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
$4.0$ $\pm1.7$ $\pm0.3$ 2
HEINTZ
1992
CSB2 ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$
1  From a sample of ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ with one converted photon.
2  Calculated by us. HEINTZ 1992 quotes B( ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b0}}}{(2P)}}$) ${\times }$B( ${{\mathit \chi}_{{{b0}}}{(2P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(2S)}}$) = ($0.28$ $\pm0.12$ $\pm0.03)\%$ using B( ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$) =($1.44$ $\pm0.10)\%$.
References