Production of New Charmoniumlike States in e+e−→J/ψD(*)D¯(*) at s≈10.6 GeV
P. Pakhlov, I. Adachi, H. Aihara, K. Arinstein et autres
We report a study of the processes ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}J/\ensuremath{\psi}{D}^{(*)}{\overline{D}}^{(*)}$. In $J/\ensuremath{\psi}{D}^{*}{\overline{D}}^{*}$ we observe a significant enhancement in the ${D}^{*}{\overline{D}}^{*}$ invariant mass spectrum, which we interpret as a new charmoniumlike state and denote $X(4160)$. The $X(4160)$ parameters are $M=({4156}_{\ensuremath{-}20}^{+25}\ifmmode\pm\else\textpm\fi{}15)\text{ }\text{ }\mathrm{MeV}/{c}^{2}$ and $\ensuremath{\Gamma}=({139}_{\ensuremath{-}61}^{+111}\ifmmode\pm\else\textpm\fi{}21)\text{ }\text{ …
ru, jp, ch, in, au, si, pl, us, tw, kr, de, at, cn (code pays fourni par la source)
182 citations
Physical Review Letters