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${\mathit m}_{{{\mathit \psi}{(3770)}}}–{\mathit m}_{{{\mathit \psi}{(2S)}}}$

INSPIRE   PDGID:

M053DM

OUR FIT includes measurements of ${\mathit m}_{{{\mathit \psi}{(2S)}}}$, ${\mathit m}_{{{\mathit \psi}{(3770)}}}$, and ${\mathit m}_{{{\mathit \psi}{(3770)}}}–{\mathit m}_{{{\mathit \psi}{(2S)}}}$.

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 87.6 \pm0.7}$ OUR FIT  Error includes scale factor of 2.3. $\bf{ 86.6 \pm0.7}$ OUR AVERAGE  Error includes scale factor of 2.0.  See the ideogram below. $86.9$ $\pm0.4$ 1 ABLIKIM 2007 E BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $86.7$ $\pm0.7$ ABLIKIM 2006 L BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $80$ $\pm2$ SCHINDLER 1980 MRK2 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $86$ $\pm2$ 2 BACINO 1978 DLCO ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $88$ $\pm3$ RAPIDIS 1977 LGW ${{\mathit e}^{+}}{{\mathit e}^{-}}$ 1  BES-II ${{\mathit \psi}{(2S)}}$ mass subtracted (see ABLIKIM 2006L). 2  SPEAR ${{\mathit \psi}{(2S)}}$ mass subtracted (see SCHINDLER 1980).

${\mathit m}_{{{\mathit \psi}{(3770)}}}–{\mathit m}_{{{\mathit \psi}{(2S)}}}$ (MeV)

References