${\mathit m}_{{{\mathit \Upsilon}{(2S)}}}–{\mathit m}_{{{\mathit \Upsilon}{(1S)}}}$ INSPIRE search

M052A00
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 562.81 \pm0.11}$ OUR AVERAGE
$562.71$ $\pm0.04$ $\pm0.20$ 3.7M 1
AAIJ
2024AC
 LHCB ${{\mathit \Upsilon}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
$562.85$ $\pm0.03$ $\pm0.12$ 89k 1
AAIJ
2024AC
 LHCB ${{\mathit \Upsilon}{(2S)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$
1  Observed in prompt ${{\mathit p}}{{\mathit p}}$ production.
  References:
AAIJ 2024AC
JHEP 2410 122 Observation of muonic Dalitz decays of $\chi_{b}$ mesons and precise spectroscopy of hidden-beauty states