Speaker
Pieter van den Berg
Description
We search for anomalous charge asymmetries in the b to c transitions of both
neutral and charged B mesons. Indirect CP violation in Bd and Bs mixing is
studied using semileptonic decays. Direct CP violation in B+ decay is studied
using exclusive decays to J/psi mesons. The results are based on a large data
set of proton-antiproton collisions recorded by the Dzero detector operating at
the Fermilab Tevatron Collider. Dzero contains independent spectrometers
based on an inner solenoid and outer toroids. The magnet polarities are
reversed on a regular basis allowing for unprecedented control of the
systematic uncertainties associated with charge asymmetry measurements in B
meson mixing and decay. The results presented can be used to limit new
physics in both Delta Bd and Delta Bs = 2 operators as well as limit recent
fourth generation models.
Author
Pieter van den Berg