Speakers
Luis Alejandro Perez Perez
(INFN Sezione di Pisa)
Luis Alejandro Perez Perez
(Sezione di Pisa (IT))
Description
Although CP violation in the B-meson system has been well established
by the B factories, there has been no direct observation of time-reversal
violation in this system. Using 468 million B-Bbar pairs collected by the
BABAR detector at SLAC, we measure T-violating parameters in the time
evolution of neutral-B mesons by comparing the probabilities of B0 or
anti-B0 transforming into definite CP final states and vice versa. The
results lead to the first direct observation of Time Reversal noninvariance, independent of CP violation. In addition, we present a selection of recent results on CP violation effects in B- and D-meson decays using a data set of about 500 fb-1 collected at the peak of the Y(4S), with the BABAR detector at SLAC. They include the measurement of processes sensitive to the angles
of the Unitarity Triangle; the study of direct CP violation effects
in charmed and botton meson decays, and a search for
mixing-induced CP asymmetry in B0 mesons.
Author
Fabio Anulli
(Universita e INFN, Roma I (IT))
