${\boldsymbol m}_{{{\boldsymbol \chi}_{{b2}}{(1P)}}}–{\boldsymbol m}_{{{\boldsymbol \chi}_{{b1}}{(1P)}}}$ INSPIRE search

VALUE (MeV)

DOCUMENT ID

TECN

COMMENT

$\bf{ 19.10 \pm0.25}$

OUR AVERAGE Error includes scale factor of 1.1.

$19.81$ $\pm0.65$ $\pm0.20$

AAIJ

2014

LHCB

${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit X}}$

$19.01$ $\pm0.24$

LEES

2014

BABR

${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$

¹ From the ${{\mathit \chi}_{{bj}}{(1P)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(1S)}}{{\mathit \gamma}}$ transition.

References:

AAIJ

2014BG

JHEP 1410 088

Measurement of the ${{\mathit \chi}_{{b}}{(3P)}}$ Mass and of the Relative Rate of ${{\mathit \chi}_{{b1}}{(1P)}}$ and ${{\mathit \chi}_{{b2}}{(1P)}}$ Production

LEES

2014M

PR D90 112010

Bottomonium Spectroscopy and Radiative Transitions Involving the ${{\mathit \chi}_{{bJ}}{(1P,2P)}}$ States at BABAR