Decay Widths of Excited Heavy Mesons From QCD Sum Rules at the Leading Order of HQET
Yuan-ben Dai, Chao-shang Huang, Ming-qiu Huang, Hong-Ying Jin, Chun Liu
Abstract
The widths for pionic decays of lowest two excited doublets (0+,1+) and (1+,2+) of heavy mesons are studied with QCD sum rules in the leading order of heavy quark effective theory. The ambiguity due to presence of two distinct 1+ states are solved. The soft pion approximation is not used.
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