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

## TL;DR

This paper investigates whether unparticle physics can explain the measured difference in $CP$ asymmetries in certain $D^0$ decays, using recent LHCb data to constrain unparticle parameters.

## Contribution

It introduces a novel analysis of unparticle physics effects on $CP$ asymmetry differences in $D^0$ decays, providing constraints on unparticle parameters based on recent experimental data.

## Key findings

- Unparticle physics can contribute to $CP$ asymmetry differences.
- Constraints on unparticle parameters are derived from LHCb data.
- No significant evidence for unparticle effects is found within current bounds.

## Abstract

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.