${{\boldsymbol \chi}_{{b1}}{(1P)}}$ MASS INSPIRE search

VALUE (MeV)
$\bf{ 9892.78 \pm0.26 \pm0.31}$ OUR EVALUATION  From average ${{\mathit \gamma}}$ energy below, using ${{\mathit \Upsilon}{(2S)}}$ mass = $10023.26$ $\pm0.31$ MeV