Searches for New Sources of CP and T Violation at BaBar

Abstract

We present recent results from searches for new sources of CP and T violation from the B, charm, and τ sectors from BaBar. From the B sector, we search for CP violation in B decays to three kaons, and to Kℓ+ℓ−, and present the first direct observation of T violation using B0→J/ψK0. In the charm sector, we search for a T-odd correlation in D+ decays to K+K0π+π−. And in the τ sector, we measure CP violation in τ− decays to K0π−ντ. Highlights of these new results include the worldʼs first observation of T violation that is fully experimentally independent of CP violation, and a 3.1σ deviation from the Standard Model predictions for CP violation in τ−→K0π−ντ.