Isospin mass splittings from precision-measurements of D*-D mass-differences
Ammar, Raymond G.
Baringer, Philip S.
Davis, Robin E. P.
AMERICAN PHYSICAL SOC
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Using the decay modes D*+ --> D+ pi0 and D*0 --> D0pi0, we have measured the D*+-D+ and D*0-D0 mass differences to be 140.64 +/- 0.08 +/- 0.06 and 142.12 +/- 0.05 +/- 0.05 MeV, respectively. Combining these measurements with the Particle Data Group average for the D*+-D0 mass difference, we obtain isospin mass splittings for D*+-D*0 and D+-D0 of 3.32 +/- 0.08 +/- 0.05 and 4.80 +/- 0.10 +/- 0.06 MeV. We discuss the implications of these measurements for models of isopsin mass differences and model-dependent estimates of f(D).
BORTOLETTO, D, BROWN, DN, et al. Isospin mass splittings from precision-measurements of D*-D mass-differences. PHYSICAL REVIEW LETTERS. October 1992. 69(14) : 2046-2049
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