Measurement of B_s mixing phase at CDF
Conference
·
OSTI ID:1001388
We present improved bounds on the CP-violating phase {beta}{sub s}{sup J/{psi}{phi}} and on the decay-width difference {Delta}{Lambda} of the neutral B{sub s}{sup 0} meson system obtained by the CDF experiment at the Tevatron collider. We use 6500 B{sub s}{sup 0} {yields} J/{psi}{phi} decays collected by the dimuon trigger and reconstructed in a sample corresponding to integrated luminosity of 5.2 fb{sup -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.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- DOE Office of Science
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1001388
- Report Number(s):
- FERMILAB-CONF-10-483-E; arXiv eprint number arXiv:1011.5760
- Country of Publication:
- United States
- Language:
- English
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