Speaker
Alastair Dewhurst
(STFC - Science & Technology Facilities Council (GB))
Description
Mixing and CP violation is studied by ATLAS in the decay of the Bs meson to J/psi Phi, obnserved in the final state mu+mu-K+K-.
The different amplitudes contributing to the process are studied through the time dependence of the angular distribution.
Measurements of the average lifetime and lifetime difference between the two eigenstate BH and BL, and of the CP violating phase phi_s are performed. New results obtained with the use of flavor-tagging will be discussed.
Author
Dr
Fabiola Gianotti
(CERN)
