Unparticle physics in top pair signals at the LHC and ILC

Abstract

We study the effects of unparticle physics in the pair productions of top quarks at the LHC and ILC. By considering vector, tensor and scalar unparticle operators, as appropriate, we compute the total cross sections for pair production processes depending on scale dimension $d_{\text{U}}$. We find that the existence of unparticles would lead to measurable enhancements on the SM predictions at the LHC. In the case of ILC this may become two orders of magnitude larger than that of SM, for smaller values of $d_{\text{U}}$, a very striking signal for unparticles.

Comments: 19 pages, 9 figures, analysis for ILC has been added