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${{\mathit h}_{{{b}}}{(1P)}}$ MASS

INSPIRE   PDGID:

M204M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 9899.3 \pm0.8}$ OUR AVERAGE $9899.3$ $\pm0.4$ $\pm1.0$ 112k TAMPONI 2015 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}$ + hadrons $9899.1$ $\pm0.4$ $\pm1.0$ 70k MIZUK 2012 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ hadrons $9902$ $\pm4$ $\pm2$ 10.8k LEES 2011 K BABR ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \eta}_{{{b}}}}{{\mathit \gamma}}{{\mathit \pi}^{0}}$ • • We do not use the following data for averages, fits, limits, etc. • • $9898.2$ ${}^{+1.1}_{-1.0}$ ${}^{+1.0}_{-1.1}$ 50.0k 1 ADACHI 2012 BELL 10.86 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ MM 1  Superseded by MIZUK 2012.

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