Uncertainty study of DS-(D-)→γlν (l=e,μ) decays determined by wave function

  • Wave function is important for determining decay constants fDS- and fD-. Using the 5 types of D meson wave functions in the heavy quark limit, we studied the uncertainties of radiative pure-leptonic decays of DS-(D-) mesons. The branching ratios are (1.025390—1.706812) × 10-5 and (0.953498—1.576725) × 10-6 for DS- and D- decays, respectively, which are sensitive to the type of wave function.
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HOU Zhao-Yu, GUO Peng and WU Wen-Wang. Uncertainty study of DS-(D-)→γlν (l=e,μ) decays determined by wave function[J]. Chinese Physics C, 2011, 35(7): 603-607. doi: 10.1088/1674-1137/35/7/001
HOU Zhao-Yu, GUO Peng and WU Wen-Wang. Uncertainty study of DS-(D-)→γlν (l=e,μ) decays determined by wave function[J]. Chinese Physics C, 2011, 35(7): 603-607.  doi: 10.1088/1674-1137/35/7/001 shu
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Received: 2010-09-29
Revised: 2010-10-14
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Uncertainty study of DS-(D-)→γlν (l=e,μ) decays determined by wave function

Abstract: Wave function is important for determining decay constants fDS- and fD-. Using the 5 types of D meson wave functions in the heavy quark limit, we studied the uncertainties of radiative pure-leptonic decays of DS-(D-) mesons. The branching ratios are (1.025390—1.706812) × 10-5 and (0.953498—1.576725) × 10-6 for DS- and D- decays, respectively, which are sensitive to the type of wave function.

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