Asymmetry Parameter of the $K_{1} (1270, 1400)$ by Analyzing the $B\to K_{1}ν\barν$ Transition Form Factors within QCD

Details Asymmetry Parameter of the $K_{1} (1270, 1400)$ by Analyzing the $B\to K_{1}ν\barν$ Transition Form Factors within QCD Asymmetry Parameter of the $K_{1} (1270, 1400)$ by Analyzing the $B\to K_{1}ν\barν$ Transition Form Factors within QCD

2008-11-17

arxiv.org/abs/0811.2692v2

Eur.Phys.J.C61:401-410,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 3 figures, 3 tables

Scientific paper

10.1140/epjc/s10052-009-1001-7

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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