${\mathit m}_{{{\mathit \chi}_{{{b1}}}{(1P)}}}–{\mathit m}_{{{\mathit \Upsilon}{(1S)}}}$ INSPIRE search

M077A00

VALUE (MeV)

EVTS

DOCUMENT ID

TECN

COMMENT

$432.10$ $\pm0.26$ $\pm0.10$

LHCB

${{\mathit \chi}_{{{b1}}}{(1P)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(1S)}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$

¹ Observed in prompt ${{\mathit p}}{{\mathit p}}$ production.

References:

AAIJ

JHEP 2410 122

Observation of muonic Dalitz decays of $\chi_{b}$ mesons and precise spectroscopy of hidden-beauty states