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We have studied the possible signals of unparticle in atomic parityviolation(APV) along an isotope chain and in the NuTeV experiment. The effectsof unparticle physics could be observed in APV, if the uncertainty in relativeneutron/proton radius shift $\delta(\Delta\frac{R_N}{R_P})$ is less than a fewtimes $10^{-4}$ by measuring the parity violating electron scattering. Theconstraints imposed by NuTeV experiment on unparticle physics are discussed indetail. If the NuTeV results are confirmed by future experiments, we suggestthat unparticle could account for a part of NuTeV anomaly. There exist certainregions for the unparticle parameters ($\Lambda_{\cal U}$, $d_{\cal U}$,$c_{V{\cal U}}$ and $c_{A{\cal U}}$), where the NuTeV discrepancy could becompletely explained by unparticle effects and the strange quark asymmetry,even with or without the contributions from the isoscalarity violation etc. Itis remarkable that these parameter regions are consistent with the constraintsfrom $b\to s\gamma$

Signals of Unparticles in Low Energy Parity Violation and NuTeV Experiment