Abstract
It is shown that recently reported branching ratios of D → Kπ and Δ = 1 property of weak nonleptonic hamiltonian for Δ C = ΔS = ±1 processes as give a phenomenological bound for χ(D +)/χ((D 0). Also, using previously calculated values of χ(D→ e ±X), the total widths of neutral and charged D mesons are guessed and their life times turn out to be rather short.
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