pdgLive Home   >   ${\mathit {\mathit b}}$ ${\mathit {\overline{\mathit b}}}$ MESONS (including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states)   >   ${{\mathit \chi}_{{{b0}}}{(1P)}}$   >   B(${{\mathit \chi}_{{{b0}}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$) ${\times }$ B(${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b0}}}{(1P)}}$) ${\times }$ B(${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$)

${{\mathit \chi}_{{{b0}}}{(1P)}}$ CROSS-PARTICLE BRANCHING RATIOS

B(${{\mathit \chi}_{{{b0}}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$) ${\times }$ B(${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b0}}}{(1P)}}$) ${\times }$ B(${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$)

INSPIRE   JSON  (beta) PDGID:

M076B01

VALUE ($ 10^{-5} $) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 1.67 \pm0.28}$ OUR AVERAGE $2.9$ ${}^{+1.7}_{-1.4}$ ${}^{+0.1}_{-0.8}$ 1 LEES 2014 M BABR ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $1.63$ $\pm0.24$ $\pm0.15$ 87 KORNICER 2011 CLEO ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ 1  From a sample of ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ with one converted photon.

References

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