Search for CP violation in the decay D[superscript +]→π[superscript −]π[superscript +]π[superscript +]

Abstract

A search for CP violation in the phase space of the decay D[superscript +]→π[superscript −]π[superscript +]π[superscript +] is reported using pp collision data, corresponding to an integrated luminosity of 1.0 fb[superscript −1], collected by the LHCb experiment at a centre-of-mass energy of 7 TeV. The Dalitz plot distributions for 3.1×10[superscript 6]D[superscript +] and D[superscript −] candidates are compared with binned and unbinned model-independent techniques. No evidence for CP violation is found.