Search for B$$0\atop{s}$$ oscillations at D0
- Columbia Univ., New York, NY (United States)
Measurement of the B$$0\atop{s}$$ oscillation frequency via B$$0\atop{s}$$ mixing analyses provides a powerful constraint on the CKM matrix elements. A search for B$$0\atop{s}$$ oscillations was performed using data collected by the DØ detector during the period 2002-2005 at the Fermilab Tevatron. Approximately 610 pb-1 of data was analyzed to reconstruct a large set of B0 s mesons in different semileptonic decay modes. Opposite-side flavor tagging algorithms that were tested on semileptonic B0 d decays with the measurement of the B$$0\atop{d}$$ mixing frequency were used to determine the initial state flavor of the reconstructed B0 s meson. No significant signal for any particular value of the oscillation frequency was found. A 95% confidence level limit on the B$$0\atop{s}$$ oscillation frequency Δms > 7.3 ps-1 and a sensitivity of 9.5 ps-1 were obtained.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 879115
- Report Number(s):
- FERMILAB-THESIS-2005-64; TRN: US0700909
- Country of Publication:
- United States
- Language:
- English
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