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arXiv · hep-ex/0701016

A Precision Determination of the D^0 Mass

C. Cawlfield·CLEO Collaboration
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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.

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C. Cawlfield, CLEO Collaboration. 2007-02-01. A Precision Determination of the D^0 Mass. https://doi.org/10.1103/physrevlett.98.092002

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