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${{\mathit \Upsilon}{(2S)}}$ MASS

INSPIRE   PDGID:

M052M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $10023.4$ $\pm0.5$ 1 SHAMOV 2023 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons • • We do not use the following data for averages, fits, limits, etc. • • $10022.7$ $\pm0.4$ 2 SHAMOV 2023 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $10023.5$ $\pm0.5$ 3, 4 ARTAMONOV 2000 MD1 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $10023.6$ $\pm0.5$ 5, 6 BARU 1986 B MD1 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $10023.1$ $\pm0.4$ 7 BARBER 1984 ARG ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons 1  Reanalysis of MD1 data using the electron mass from COHEN 1987, the radiative corrections from KURAEV 1985 and interference effects. 2  Obtained by reanalysing ARGUS and Crystal Ball data (BARBER 1984), but not authored by the ARGUS and Crystal Ball collaboration. 3  Reanalysis of BARU 1986B using new electron mass (COHEN 1987). 4  Superseded by SHAMOV 2023. 5  Reanalysis of ARTAMONOV 1984. 6  Superseded by ARTAMONOV 2000. 7  Reanalysed by SHAMOV 2023.

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