# ${{\boldsymbol \psi}{(3770)}}$ WIDTH INSPIRE search

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
 2012 A
KEDR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}$
$30.4$ $\pm8.5$ 2, 3
 2008 D
BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$27$ $\pm10$ $\pm5$ 68
 2008
BELL ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}{{\mathit K}^{+}}$
$28.5$ $\pm1.2$ $\pm0.2$ 3
 2007 E
BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$23.5$ $\pm3.7$ $\pm0.9$
 2007 BE
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}{{\mathit \gamma}}$
$26.9$ $\pm2.4$ $\pm0.3$ 3
 2006 L
BES2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
$24$ $\pm5$ 3
 1980
MRK2 ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$24$ $\pm5$ 3
 1978
DLCO ${{\mathit e}^{+}}{{\mathit e}^{-}}$
$28$ $\pm5$ 3
 1977
LGW ${{\mathit e}^{+}}{{\mathit e}^{-}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$25.8$ $\pm1.3$ 4
 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:
 SHAMOV 2017
PL B769 187 Analysis of BaBar, Belle, BES-II, CLEO and KEDR Data on ${{\mathit \psi}{(3770)}}$ Line Shape and Determination of the Resonance Parameters
 ANASHIN 2012A
PL B711 292 Measurement of ${{\mathit \psi}{(3770)}}$ Parameters
 ABLIKIM 2008D
PL B660 315 Determination of the ${{\mathit \psi}{(3770)}}$, ${{\mathit \psi}{(4040)}}$, ${{\mathit \psi}{(4160)}}$ and ${{\mathit \psi}{(4415)}}$ Resonance Parameters
 BRODZICKA 2008
PRL 100 092001 Observation of a New ${{\mathit D}_{{sJ}}}$ Meson in ${{\mathit B}^{+}}$ $\rightarrow$ ${{\overline{\mathit D}}^{0}}{{\mathit D}^{0}}{{\mathit K}^{+}}$ Decays
 ABLIKIM 2007E
PL B652 238 Precision Measurements of the Mass, the Widths of ${{\mathit \psi}{(3770)}}$ Resonance and the Cross Section $\sigma\mathrm {( {{\mathit e}^{+}} {{\mathit e}^{-}} \rightarrow {{\mathit \psi}{(3770)}} )}$ at $\mathit E_{{\mathrm {cm}}}$ = 3.7724 GeV
 AUBERT 2007BE
PR D76 111105 Study of the Exclusive Initial-State-Radiation Production of the ${{\mathit D}}{{\overline{\mathit D}}}$ System
 ABLIKIM 2006L
PRL 97 121801 Measurements of the Branching Fractions for ${{\mathit \psi}{(3770)}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}$ , ${{\mathit D}^{+}}{{\mathit D}^{-}}$, ${{\mathit D}}{{\overline{\mathit D}}}$, and the Resonance Parameters of ${{\mathit \psi}{(3770)}}$ and ${{\mathit \psi}{(2S)}}$
 SCHINDLER 1980
PR D21 2716 Measurement of the Parameters of the ${{\mathit \psi}{(2S)}}$ Resonance
 BACINO 1978
PRL 40 671 Observation of a Peak in Hadron and Weak Electron Production in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation at $\mathit E_{{\mathrm {cm}}}$ 3770 MeV
 RAPIDIS 1977
PRL 39 526 Observation of a Resonance in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation just above Charm Threshold
see fit info