Search for CP violation in the phase space of D0→ π-π+π0 decays with the energy test

A search for CP violation in D-0 -> pi(-)pi(+)pi(0) decays is reported, using pp collision data collected by the LHCb experiment from 2015 to 2018 corresponding to an integrated luminosity of 6 fb(-1). An unbinned model-independent approach provides sensitivity to local CP violation within the two-dimensional phase space of the decay. The method is validated using the Cabibbo-favoured channel D-0 -> K-pi(+)pi(0) and background regions of the signal mode. The results are consistent with CP symmetry in this decay.

Automated summary

This study reports the search for CP violation in D-0 -> pi(-)pi(+)pi(0) decays, using pp collision data collected by the LHCb experiment from 2015 to 2018. The results confirm the CP symmetry in this decay.