A Search for Time Dependent B{sub S}{sup 0}-{bar B}{sub S}{sup 0} Oscillations Using Exclusively Reconstructed D{sub S}{sup +} AT SLD
The authors set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}{sup 0} - {bar B}{sub s}{sup 0} mixing using a sample of 400,000 hadronic Z{sup 0} decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B{sub s}{sup 0} mesons are partially reconstructed by combining a fully reconstructed D{sub s} with other B{sub s}{sup 0} decay products. The D{sub s} decays are reconstructed via the {phi}{pi} and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z{sup 0} {yields} b{bar b} decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B{sub s}{sup 0} at the decay vertex is determined by the charge of the D{sub s}. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B{sub s}{sup 0}-{bar B}{sub s}{sup 0} mixing oscillation frequency: {Delta}m{sub s} < 1.4 psec{sup -1} and 2.5 < {Delta}m{sub s} < 5.3 psec{sup -1} at the 95% confidence level.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 798981
- Report Number(s):
- SLAC-R-584; TRN: US0205134
- Resource Relation:
- Other Information: PBD: 10 Jan 2002
- Country of Publication:
- United States
- Language:
- English
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