Kreps, Michal (2010) Measurement of Bs mixing phase at CDF. In: 6th International Workshop on the CKM Unitarity Triangle, CKM 2010, Coventry, United Kingdom, 6-10 Sept 2010. Published in: Proceedings of the 6th International Workshop on the CKM Unitarity Triangle, CKM 2010

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Abstract

We present improved bounds on the CP-violating phase β s J/Ψφ and on the decay-width difference ΔΓ of the neutral B s 0 meson system obtained by the CDF experiment at the Tevatron collider. We use 6500 B s 0 → J/ Ψφ decays collected by the dimuon trigger and reconstructed in a sample corresponding to integrated luminosity of 5.2 fb -1. Besides exploiting a two-fold increase in statistics with respect to the previous measurement, several improvements have been introduced in the analysis including a fully data-driven flavour-tagging calibration and proper treatment of possible S-wave contributions.

Item Type:	Conference Item (Paper)
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Proceedings of the 6th International Workshop on the CKM Unitarity Triangle, CKM 2010
Official Date:	2010
Dates:	Date Event 2010 Published
Status:	Peer Reviewed
Publication Status:	Published
Conference Paper Type:	Paper
Title of Event:	6th International Workshop on the CKM Unitarity Triangle, CKM 2010
Type of Event:	Workshop
Location of Event:	Coventry, United Kingdom
Date(s) of Event:	6-10 Sept 2010
Related URLs:	Organisation
Open Access Version:	ArXiv

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