# ${{\boldsymbol h}_{{b}}{(1P)}}$ MASS INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 9899.3 \pm0.8}$ OUR AVERAGE
$9899.3$ $\pm0.4$ $\pm1.0$ 112k
 2015
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \eta}}$ + hadrons
$9899.1$ $\pm0.4$ $\pm1.0$ 70k
 2012
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ hadrons
$9902$ $\pm4$ $\pm2$ 10.8k
 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
 2012
BELL 10.86 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ MM
1  Superseded by MIZUK 2012 .
References:
 TAMPONI 2015
PRL 115 142001 First Observation of the Hadronic Transition ${{\mathit \Upsilon}{(4S)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit h}_{{b}}{(1P)}}$ and New Measurement of the ${{\mathit h}_{{b}}{(1P)}}$ and ${{\mathit \eta}_{{b}}{(1S)}}$ PParameters
PRL 108 032001 First Observation of the $\mathit P$-Wave Spin-Singlet Bottomonium States ${{\mathit h}_{{b}}{(1P)}}$ and ${{\mathit h}_{{b}}{(2P)}}$
PRL 109 232002 Evidence for the ${{\mathit \eta}_{{b}}{(2S)}}$ and Observation of ${{\mathit h}_{{b}}{(1P)}}$ $\rightarrow$ ${{\mathit \eta}_{{b}}{(1S)}}{{\mathit \gamma}}$ and ${{\mathit h}_{{b}}{(2P)}}$ $\rightarrow$ ${{\mathit \eta}_{{b}}{(1S)}}{{\mathit \gamma}}$
PR D84 091101 Evidence for the ${{\mathit h}_{{b}}{(1P)}}$ Meson in the Decay ${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit h}_{{b}}{(1P)}}$