We set a preliminary 95% C.L. exclusion on the oscillation frequency of [special characters omitted] mixing using a sample of 400,000 hadronic Z 0 decays collected by the SLD experiment at the SLC during the 1996–98 run. In this analysis, [special characters omitted] mesons are partially reconstructed by combining a fully reconstructed Ds with other [special characters omitted] decay products. The Ds decays are reconstructed via the &phis;π and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z0 → bb¯ decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the [special characters omitted] at the decay vertex is determined by the charge of the D s. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the [special characters omitted] mixing oscillation frequency: Δms < 1.4 psec−1 and 2.5 < Δms < 5.3 psec−1 at the 95% confidence level.
| Identifer | oai:union.ndltd.org:UMASS/oai:scholarworks.umass.edu:dissertations-3567 |
| Date | 01 January 2001 |
| Creators | Lin, Cheng-Ju Stephen |
| Publisher | ScholarWorks@UMass Amherst |
| Source Sets | University of Massachusetts, Amherst |
| Language | English |
| Detected Language | English |
| Type | text |
| Source | Doctoral Dissertations Available from Proquest |
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