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The twist-3 distribution amplitudes in the $B\toπ$ transition form factor

Ming-Zhen Zhou·Xing-Hua Wu·Tao Huang
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Abstract

We derive an expression for the $B\toπ$ transition form factor only depending the twist-3 distribution amplitudes by choosing an adequate chiral current correlator in the light-cone QCD sum rules. Our result show that the contribution from the twist-3 distribution amplitudes to the $f_{Bπ}^+(q^2)$ give a constraint on the twist-3 light-cone distribution amplitude.

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Ming-Zhen Zhou, Xing-Hua Wu, Tao Huang. 2004-02-04. The twist-3 distribution amplitudes in the $B\toπ$ transition form factor. https://arxiv.org/abs/hep-ph/0402040

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