Precision Measurement of the Mass of the $D^{*0}$ Meson and the Binding Energy of the $X(3872)$ Meson as a $D^0\overline{D^{*0}}$ Molecule

A precision measurement of the mass difference between the D-0 and D*(0) mesons has been made using 316 pb(-1) of e(+)e(-) annihilation data taken at root s = 4170 MeV using the CLEO-c detector. We obtain Delta M equivalent to M (D*(0)) - M(D-0) = 142.007 +/- 0.015(stat) +/- 0.014(syst) MeV, as the average for the two decays, D-0 -> K-pi(+) and D-0 -> K-pi(+)pi(-)pi(+). The new measurement of Delta M leads to M(D*(0)) = 2006.850 +/- 0.049 MeV, and the currently most precise measurement of the binding energy of the "exotic" meson X(3872) if interpreted as a (DD)-D-0*(0) hadronic molecule, E-b(X(3872)) equivalent to M((DD)-D-0*(0)) -M(X(3872)) = 3 +/- 192 keV.