${\mathit m}_{{{\mathit \Upsilon}{(3S)}}}–{\mathit m}_{{{\mathit \Upsilon}{(2S)}}}$

INSPIRE   PDGID:
M048DM2
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$331.50$ $\pm0.02$ $\pm0.13$
LEES
2011C
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit X}}$
References