[SEMINARI] SEMINAR: Ivan Vila, Measurement of Bs - anti Bs oscillation frequency

[German Rodrigo Garcia]

Measurement of Bs - anti Bs oscillation frequency

Iván Vila
IFCA
Thursday, 29 of June of 2006     11:00 AM PLEASE NOTE UNUSUAL TIME !!!!!
IFIC's Seminar

Abstract

We report a measurement of the Bs - Bs oscillations and a determination of 
|Vtd|/|Vts| using the CDF Detector operating at the Fermilab Tevatron. 
This result is derived from 1 fb-1 of pp collisions at 1.96TeV. We use 
semileptonic and hadronic Bs meson decays and observe a signature 
consistent with Bs - Bs oscillations. The probability that the data could 
randomly fluctuate to mimic such a signature is 0.5%. The results are: 
Δms = 17.33 + 0.42 - 0.21 (stat) ± 0.07(sys) |Vtd|/|Vts| = 0.208 +0.008 
- 0.007 (stat +sys)