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arXiv · hep-ph/9812430

Decay of heavy-light hybrids in HQET sum rules

Tao Huang·Hongying Jin·Ailin Zhang
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Abstract

The decay widths of the 0^{++} and 1^{-+} heavy-light hybrids to B(D) and pion are calculated by using the QCD sum rules. The interpolated current of the hybrid is chosen as $g\bar qγ_αG_{αμ}^aT^ah_{\it v}(x)$. In order to simplify the calculation and avoid the ambiguity of three-point correlation function, a two-point correlation function between the pion and vacuum is used instead. The decay width of the $0^{++}\to B(D)$ is about 12(16) MeV while the $1^{-+}\to B(D)$ is around 0.4(1.8) MeV. We keep the leading order of 1/M_Q expansion in our calculation for convenience.

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Tao Huang, Hongying Jin, Ailin Zhang. 1999-11-06. Decay of heavy-light hybrids in HQET sum rules. https://doi.org/10.1103/physrevd.60.114004

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