The Effects of Fourth Generation in Single Lepton Polarization on Λ b → Λ l + l − decay

Abstract

This study investigates the influence of the fourth generation quarks on the single lepton polarizations in Λb → Λl+l− decay. Taking |Vt′sVt′b| ∼ {0.01 − 0.03} with phase just below 90◦, which is consistent with the b → sl+l− rate and the Bs mixing parameter ∆mBs , we obtain that single lepton(μ, τ) polarizations are quite sensitive to the existence of… (More)

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