On the difference of time-integrated $CP$ asymmetries in $D^0rightarrow K^+K^-$ and $D^0rightarrowpi^+pi^-$ decays: unparticle physics contribution

The LHCb Collaboration has recently measured the difference of time-integrated $CP$ asymmetry in $D^{0}rightarrow K^{+}K^{-}$ and $D^{0}rightarrow pi^{+}pi^{-}$ decays, more precisely. The reported value is $ Delta A_{CP}=-0.10 pm 0.08 (text{stat}) pm 0.03 (text{syst})% $ which indicates no evidence for $CP$ violation. We consider the possible unparticle physics contribution in this quantity and by using the LCHb data try to constrain the parameter space of unparticle stuff.