Measurement of the branching fraction for $D^{0} \rightarrow K_{s}^{0} K_{s}^{0} \pi^{+} \pi^{-}$ and measurement of CP violation using T-odd triple product asymmetry at Belle.

In this analysis, we have measured the branching fraction and searched for CP violation using T-odd triple product asymmetries in the singly Cabibbo-suppressed four body final state decay $D^{0} \rightarrow K_{s}^{0} K_{s}^{0} \pi^{+} \pi^{-}$. For the analysis, we are using a data sample corresponding to an integrated luminosity of 932 fb$^{-1}$. The data were collected using Belle detector at KEKB asymmetric $e^{+}e^{-}$ collider running at or near $\Upsilon$(4S) \xspace and $\Upsilon$(5S) \xspace resonances. Charm decays are expected to have very small CP violation in the standard model, this makes CP violation searches in charm decays an excellent probe of physics beyond standard model. We have probed the asymmetries in the observable C$_{T}$ = $\vv{P}_{K_{s}^{0}}^{1} \cdot (\vv{P}_{\pi^{+}} \times \vv{P}_{\pi^{-}})$ for $D^{0}$ and $\overline{D}^{0}$. Looking at the difference of T-odd asymmetries between CP conjugate $D^{0}$ and $\overline{D}^{0}$ decays provides us a CP asymmetry observable free from strong interaction effects.