24–31 Jul 2009
Wayne State University
US/Eastern timezone

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

28 Jul 2009, 14:24
24m
McGregor Center, Room C

McGregor Center, Room C

Wayne State University

Speaker

Dr Ignacio Redondo

Description

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.

Author

Presentation materials