pdgLive Home   >   ${\mathit {\mathit b}}{\mathit {\overline{\mathit b}}}$ MESONS (including possibly non-${\mathit {\mathit q}}{\mathit {\overline{\mathit q}}}$ states)   >   ${{\mathit \chi}_{{{b2}}}{(1P)}}$   >   B( ${{\mathit \chi}_{{{b2}}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$) ${\times }$ B( ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b2}}}{(1P)}}$) ${\times }$ B( ${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$)

${{\mathit \chi}_{{{b2}}}{(1P)}}$ Cross-Particle Branching Ratios

B( ${{\mathit \chi}_{{{b2}}}{(1P)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \Upsilon}{(1S)}}$) ${\times }$ B( ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{b2}}}{(1P)}}$) ${\times }$ B( ${{\mathit \Upsilon}{(1S)}}$ $\rightarrow$ ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$)

INSPIRE   PDGID:

M078B02

VALUE ($ 10^{-5} $) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 3.8 \pm0.5}$ OUR AVERAGE $4.68$ ${}^{+0.99}_{-0.92}$ $\pm0.37$ 1 LEES 2014 M BABR ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $3.56$ $\pm0.40$ $\pm0.41$ 126 KORNICER 2011 CLEO ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ 1  From a sample of ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ with converted photons.

References

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