The influence of the scalar unparticle on the Z-production at high energy $e^{-}{e}^{+}$ scattering process

Abstract

An attempt is made to present the contribution of the scalar unparticle on the Z-production cross-section at International Linear Colliders (ILC) with polarized initial beams in the Randall-Sundrum model. The cross-sections depend strongly on the polarization of $e^{-}$, $e^{+}$ initial beams, the center of mass energy $\sqrt{s}$, the scaling dimension $d_U$ of the unparticle operator ${\mathcal{O}}_U$ and the energy scale ${\Lambda }_U$. The results indicate that with the effect of the scalar propagators in the s-channel, including radion, Higgs and scalar unparticle, the cross-section for the ZZ production is enhanced and larger than that in the Standard model under the same conditions.