Mixing and CP violation in theBssystem with ATLAS

Pavol Bartoš, A. Wrońska, C. Guaraldo, A. Magiera, H. Ströher
2014 EPJ Web of Conferences  
The different amplitudes contributing to the decay of B s into J/ψφ (µ + µ − K + K − ) can be studied with a combined analysis of the decay time and angular correlations. An analysis based on the LHC data collected by the ATLAS detector in 2011 and with initial B-meson flavour tagging is presented, improving the accuracy in the CP-violating phase φ s compared to the untagged analysis.
doi:10.1051/epjconf/20148103001 fatcat:u2lt5gtcdvce7mge7ojrglhdju