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Asymmetry Parameter of the K₁ (1270, 1400) by Analyzing the Bto K₁ν bar{ν} Transition Form Factors within QCD
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Asymmetry Parameter of the K₁ (1270, 1400) by Analyzing the Bto K₁ν bar{ν} Transition Form Factors within QCD
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Separating the mixture of the $ K_{1}(1270)$ and $K_{1}(1400) $ states, the $B\to K_{1}(1270, 1400)\nu\bar{\nu}$ transition form factors are calculated in the three-point QCD sum rules approach. The longitudinal, transverse and total decay widths as well as the asymmetry parameter, characterizing the polarization of the axial $K_{1}(1270, 1400)$ and the branching ratio for these decays are evaluated.
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