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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
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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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Yuan-ben Dai, Chao-shang Huang, Ming-qiu Huang, Hong-Ying Jin, Chun Liu. 1998-08-18. Decay Widths of Excited Heavy Mesons From QCD Sum Rules at the Leading Order of HQET. https://doi.org/10.1103/physrevd.58.094032%2010.1103%2Fphysrevd.59.059901

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