Unparticle physics effects in Λb→Λ+missingenergy processes

We study unparticle physics effects in Λb→Λ+missingenergy decay with polarized Λb and Λ baryons. The sensitivity of the branching ratio of this decay and polarizations of Λb and Λ baryons on the scale dimension dU and effective cut-off parameter ΛU are discussed.