摘要We apply the kT factorization approach to deal with the B→K transition form factor with tensor current in the large recoil regions. Main uncertainties for the estimation are discussed and we obtain FTB→K(0)=0.25±0.01±0.02, where the first error is caused by the uncertainties from the pionic wavefunctions and the second is from that of the B-meson wavefunctions. This result is consistent with the light-cone sum rule results obtained in the literature.
Abstract：We apply the kT factorization approach to deal with the B→K transition form factor with tensor current in the large recoil regions. Main uncertainties for the estimation are discussed and we obtain FTB→K(0)=0.25±0.01±0.02, where the first error is caused by the uncertainties from the pionic wavefunctions and the second is from that of the B-meson wavefunctions. This result is consistent with the light-cone sum rule results obtained in the literature.
ZENG Dai-Min;WU Xing-Gang;FANG Zhen-Yun. B→K Transition Form Factor with Tensor Current within the kT Factorization Approach[J]. 中国物理快报, 2008, 25(2): 436-439.
ZENG Dai-Min, WU Xing-Gang, FANG Zhen-Yun. B→K Transition Form Factor with Tensor Current within the kT Factorization Approach. Chin. Phys. Lett., 2008, 25(2): 436-439.
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2008, Vol. 25 
