Jul 16 – 22, 2009
Kraków, Poland
Europe/Warsaw timezone

Study of CP violation in Bs -> J/psi phi decays at CDF

Jul 16, 2009, 2:50 PM
Large Lecture - Hall A (Kraków, Poland)

Large Lecture - Hall A

Kraków, Poland

The Auditorium Maximum of the Jagiellonian University 33 Krupnicza Street 31-123 Kraków
Flavour Physics II. Flavour Physics


Mr Jan Morlock (University of Karlsruhe)


The first measurement of CP violation phase beta_s in Bs -> J/psi phi decays in 2007 generated considerable interest. The interest was caused by the small deviation from the SM. While not sufficiently significant, together with other measurements it is suggestive of a possible new physics contribution. In the subsequent update using 2.8 fb-1 of data collected by CDF II detector deviation from the SM further increased. We present latest CDF results on the mean decay width Gamma_s and CP violating phase beta_s, based on an angular- and time-dependent analysis of the Bs -> J/psi phi decays, including determination of the flavor of the Bs meson at production time.

Primary author

The CDF Collaboration (multiple institutions)

Presentation materials