Abstract
We first extract the binding energy {lambda} and decay constants of the D wave heavy meson doublets (1{sup -},2{sup -}) and (2{sup -},3{sup -}) with QCD sum rule in the leading order of heavy quark effective theory. Then we study their pionic ({pi},K,{eta}) couplings using the light-cone sum rule, from which the parameter {lambda} can also be extracted. We then calculate the pionic decay widths of the strange/nonstrange D wave heavy D/B mesons and discuss the possible candidates for the D wave charm-strange mesons. Further experimental information, such as the ratio between D{sub s}{eta} and DK modes, will be very useful to distinguish various assignments for D{sub sJ}(2860 2715)
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