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Isospin mass splittings from precision-measurements of D*-D mass-differences
Ammar, Raymond G. Ball, S. Baringer, Philip S. Coppage, Don Copty, N. Davis, Robin E. P. Hancock, N. Kelly, M. Kwak, Nowhan Lam, H.
Ammar, Raymond G.
Ball, S.
Baringer, Philip S.
Coppage, Don
Copty, N.
Davis, Robin E. P.
Hancock, N.
Kelly, M.
Kwak, Nowhan
Lam, H.
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Abstract
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).
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1992-10
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AMERICAN PHYSICAL SOC
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p2046_1.pdf
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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