Lepton flavor conserving Z boson decays and scalar unparticle

Abstract

We predict the contribution of scalar unparticle to the branching ratios of the lepton flavor conserving Z -> l^+ l^- decays and we study the discrepancy between the experimental and the QED corrected standard model branching ratios. We observe that these decays are sensitive to the unparticle scaling dimension d_u for its small values, especially for heavy lepton flavor output.

arXiv comment18 pages, 1 table, 7 figures

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• Bound on Noncommutative Standard Model with Hybrid Gauge Transformation via Lepton Flavor Conserving $Z$ Decay
• Collider Effects of Unparticle Interactions in Multiphoton Signals
• Lepton flavor violating Higgs decays and unparticle physics