#### $\mathbf {{{\mathit X}} (1850 - 3100)}$ $\mathit I{}^{G}(\mathit J{}^{PC}) = ?{}^{?}(1{}^{--})$

VALUE CL% DOCUMENT ID TECN  COMMENT
$<120$ 90 1
 2011
KEDR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons
 1 This limit is center-of-mass energy dependent. We quote the most stringent one.
References:
 ANASHIN 2011
PL B703 543 Search for Narrow Resonances in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Annihilation between 1.85 and 3.1 GeV with the KEDR Detector