New QCD Sum Rule for D(0+)
Abstract
We derive a new QCD sum rule for D(0+) which has only the Dπ continuum with a resonance in the hadron side, using the assumption similar to that has been successfully used in our previous work to the mass of Ds(0+)(2317). For the value of the pole mass Mc=1.38 GeV as used in the Ds(0+) case we find that the mass of D(0+) derived from this sum rule is significantly lower than that derived from the sum rule with the pole approximation. Our result is in agreement with the experimental dada from Belle.
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