A Precision Determination of the D^0 Mass

Abstract

A precision measurement of the D^0 meson mass has been made using ~281 pb-1 of e+e- annihilation data taken with the CLEO-c detector at the psi(3770) resonance. The exclusive decay D^0 -> (Ks phi) has been used to obtain M(D^0)=1864.847+-0.150(stat)+-0.095(syst) MeV. This corresponds to M(D^0 D^*0)=3871.81+-0.36 MeV, and leads to a well-constrained determination of the binding energy of the proposed (D^0 D^*0) molecule X(3872), E_b=0.6+-0.6 MeV.

8 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2006/, Submitted to PRL

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• The Exotic XYZ Charmonium-like Mesons
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• Pion Interactions in the X(3872)
• Reconciling the X(3872) with the near-threshold enhancement in the D^0\bar{D}^{*0} final state
• Study of Resonances in Exclusive B Decays to Dbar(*)D(*)K
• Line Shapes of the X(3872)
• QCD Sum Rules for the X(3872) as a mixed molecule-charmoniun state
• Study of the Exclusive Initial-State Radiation Production of the $D\bar{D}$ System
• Decays of the X(3872) and ${\chi }_{c1}(2P)$ charmonium
• Precision measurement of D meson mass differences
• Nature of X(3872) from data
• Charged Exotic Charmonium States
• The Effects of Charged Charm Mesons on the Line Shapes of the X(3872)
• Ambiversion of X(3872)
• Threshold effect and π^\pm ψ(2S) peak
• Pionic transitions from X(3872) to chi_{cJ}
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• On the scattering of D and D* mesons off the X(3872)
• Isospin properties of the X state near the D {\bar D}^{*} threshold
• Radiative decay of the X(3872) as a mixed molecule-charmonium state in QCD Sum Rules
• Line Shapes of the Z(4430)
• QCD Sum Rules for the production of the X(3872) as a mixed molecule-charmonium state in B meson decay
• An Estimate of the Partial Width for X(3872) into p p-bar
• Precision Measurement of the Mass of the $D^{\ast 0}$ Meson and the Binding Energy of the $X(3872)$ Meson as a $D^0\overline{D^{\ast 0}}$ Molecule
• Measurement of D^0 and D^+ meson masses with the KEDR Detector
• Hadronic D and D_s Meson Decays
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• High precision measurement of the masses of the $D^0$ and $K_S$ mesons
• A New Experiment to Study Hyperon CP Violation and the Charmonium System
• Recent results from the KEDR Detector
• Hidden and open charm at Belle (and elsewhere)