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arXiv · 0801.0626

$B\to K$ Transition Form Factor with Tensor Current within the $k_T$ Factorization Approach

Dai-Min Zeng·Xing-Gang Wu·Zhen-Yun Fang
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Abstract

In the paper, we apply the $k_T$ factorization approach to deal with the $B\to K$ transition form factor with tensor current in the large recoil regions. Main uncertainties for the estimation are discussed and we obtain $F_T^{B\to K}(0)=0.25\pm0.01\pm0.02$, where the first error is caused by the uncertainties from the pionic wave functions and the second is from that of the B-meson wave functions. This result is consistent with the light-cone sum rule results obtained in the literature.

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Dai-Min Zeng, Xing-Gang Wu, Zhen-Yun Fang. 2008-01-09. $B\to K$ Transition Form Factor with Tensor Current within the $k_T$ Factorization Approach. https://doi.org/10.1088/0256-307x%2F25%2F2%2F023

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