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

INSPIRE JSON (beta) PDGID:

VALUE (MeV)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 331.82 \pm0.08}$

OUR AVERAGE Error includes scale factor of 1.9.

See the ideogram below.

$331.77$ $\pm0.07$ $\pm0.10$

1.8M

LHCB

${{\mathit \Upsilon}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$

$331.88$ $\pm0.03$ $\pm0.04$

1.5k

LHCB

${{\mathit \Upsilon}{(3S)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(2S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$331.50$ $\pm0.02$ $\pm0.13$

BABR

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit X}}$

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

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

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