Lepton polarization effects in "Lambdab -> Lambda l+l-" decay in family non-universal Z' model
Abstract
Possible manifestation of the family non-universal Z' boson effects in lepton polarization in rare, exclusive baryonic "Lambdab -> Lambda l+l-" decay is examined. It is observed that the double lepton polarizations PTT and PNN are sensitive to the Z' contribution. Moreover, it is found that the zero position of the polarized forward-backward asymmetry AFBLL is shifted to the left compared to the standard model prediction. Therefore, determination of the zero value of AFBLL is quite an efficient tool for establishing new Z' boson, but also in discriminating various scenarios of the considered family non-universal Z' model.
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