1992
DOI: 10.1103/physrevlett.69.2041
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Measurement of theD*(2010) branching fractions

Abstract: We report a measurement of the D* + and Z>*° decay branching fractions based on 780 pb _l of data collected with the CLEO II detector. For radiative D* + decay, we obtain an upper limit, J8(Z)* + -• D*y) <4.2% (90% confidence level), which is substantially below previous results, and eliminates the need for an anomalously large charm quark magnetic moment.

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Cited by 92 publications
(16 citation statements)
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“…To obtain numeric values it is necessary to know the values of the various couplings which enter the Lagrangian. Combining data on the D * width and branching fractions [14,15], Amundson et al…”
Section: Discussion and Numeric Resultsmentioning
confidence: 99%
“…To obtain numeric values it is necessary to know the values of the various couplings which enter the Lagrangian. Combining data on the D * width and branching fractions [14,15], Amundson et al…”
Section: Discussion and Numeric Resultsmentioning
confidence: 99%
“…The branching ratio of D * + → π + s D 0 was assumed to be 68.1%, which was obtained by CLEO [25]. The V/(V+P) ratio was set to 0.75 and a u:d:s:qq ratio of 1:1:0.3:0.1 was used.…”
Section: Monte-carlo Simulationsmentioning
confidence: 99%
“…The heavy meson decays, e.g., D * → D decays may also be a good testing ground for the value of quark axial vector coupling g A . Although the total widths of D * + and D * 0 are still unknown, their decay branching ratios have been measured accurately by the CLEO Collaboration [5] (see also ref. [6]).…”
mentioning
confidence: 99%
“…To determine g A , the most useful data might be B(D * 0 → D 0 γ) and B(D * 0 → D 0 π 0 ), which are better measured experimentally and are not sensitive to the value of the charm quark mass in theoretical calculations. We suggest using the measured ratio [5] R 0 γ ≡ Γ(D * 0 → D 0 γ) Γ(D * 0 → D 0 π 0 ) = 0.572 ± 0.057 ± 0.081,…”
mentioning
confidence: 99%
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