${\boldsymbol m}_{{{\boldsymbol \chi}_{{b1}}{(1P)}}}–{\boldsymbol m}_{{{\boldsymbol \chi}_{{b0}}{(1P)}}}$ INSPIRE search

VALUE (MeV) DOCUMENT ID TECN  COMMENT
$32.49$ $\pm0.93$
LEES
2014M
BABR ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
  References:
LEES 2014M
PR D90 112010 Bottomonium Spectroscopy and Radiative Transitions Involving the ${{\mathit \chi}_{{bJ}}{(1P,2P)}}$ States at BABAR