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${{\mathit \psi}{(3770)}}$ WIDTH

INSPIRE   PDGID:

M053W

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 27.2 \pm1.0}$ OUR FIT $\bf{ 27.5 \pm0.9}$ OUR AVERAGE $24.9$ ${}^{+4.6}_{-4.0}$ ${}^{+0.5}_{-1.1}$ 1 ANASHIN 2012 A KEDR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}$ $30.4$ $\pm8.5$ 2, 3 ABLIKIM 2008 D BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $27$ $\pm10$ $\pm5$ 68 BRODZICKA 2008 BELL ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}{{\mathit K}^{+}}$ $28.5$ $\pm1.2$ $\pm0.2$ 3 ABLIKIM 2007 E BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $23.5$ $\pm3.7$ $\pm0.9$ AUBERT 2007 BE BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}{{\mathit \gamma}}$ $26.9$ $\pm2.4$ $\pm0.3$ 3 ABLIKIM 2006 L BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons $24$ $\pm5$ 3 SCHINDLER 1980 MRK2 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $24$ $\pm5$ 3 BACINO 1978 DLCO ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $28$ $\pm5$ 3 RAPIDIS 1977 LGW ${{\mathit e}^{+}}{{\mathit e}^{-}}$ • • We do not use the following data for averages, fits, limits, etc. • • $25.8$ $\pm1.3$ 4 SHAMOV 2017 RVUE ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}$, hadrons 1  Taking into account interference between the resonant and non-resonant ${{\mathit D}}{{\overline{\mathit D}}}$ production. 2  Reanalysis of data presented in BAI 2002C. From a global fit over the center-of-mass energy region $3.7 - 5.0$ GeV covering the ${{\mathit \psi}{(3770)}}$, ${{\mathit \psi}{(4040)}}$, ${{\mathit \psi}{(4160)}}$, and ${{\mathit \psi}{(4415)}}$ resonances. Phase angle fixed in the fit to $\delta $ = 0$^\circ{}$. 3  Interference between the resonant and non-resonant ${{\mathit D}}{{\overline{\mathit D}}}$ production not taken into account. 4  From the joint analysis of the data on the ${{\mathit D}}{{\overline{\mathit D}}}$ and inclusive hadronic cross sections in the ${{\mathit \psi}{(3770)}}$ region from BaBar, Belle, BES-II, CLEO and KEDR.

References

see fit info