A search for time-integrated CP violation in the Cabibbo-suppressed decay D0 → π−π+π0 is performed using for the first time an unbinned model-independent technique known as the energy test. Using proton–proton collision data, corresponding to an integrated luminosity of 2.0 fb−1 collected by the LHCb detector at a centre-of-mass energy of √s = 8 TeV, the world’s best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (2.6 ± 0.5)%.
|Titolo:||Search for CP violation in D-0 -> pi(-)pi(+)pi(0) decays with the energy test|
|Data di pubblicazione:||2015|
|Tipologia:||1.1 Articolo in rivista|