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- W1549851888 abstract "The B0 s meson spontaneously transforms into its antiparticle ($bar{B}$ 0 s ). These ‘flavour oscillations’ occur periodically with a frequency that may be measured. The oscillation frequency is related to the fundamental parameters of the electroweak interaction. Measuring the frequency provides a constraint on the electroweak quark coupling parameter Vts and improves the constraint on Vtd. Furthermore, the amplitude of the oscillation process may be slightly different in B0 s and $bar{B}$ 0 s mesons due to CP violating nature of the weak interaction. This ‘asymmetry’ is expected to be small (aSM,s fs = (2.06 ± 0.57) x 10 5), but may be enhanced (as fs ≅ O(1%)) by new sources of CP violation. This thesis describes a search for B0 s flavour oscillations and charge asymmetry in the B0 s → D- s μ+vμ X (D- s → K* 0K- ) decay mode using 5.0 fb -1 of D0 data. A lower limit is placed on the oscillation frequency, Δms > 9.9 ps -1 with an expected sensitivity to oscillations below 14.8 ps -1. The charge asymmetry is measured to be as fs 0.018 ± 0.025(stat) ± 0.002(syst). A combination of these measurements with other decay modes is also presented." @default.
- W1549851888 created "2016-06-24" @default.
- W1549851888 creator A5000605234 @default.
- W1549851888 date "2010-01-01" @default.
- W1549851888 modified "2023-10-16" @default.
- W1549851888 title "Flavour oscillations and CP asymmetry in semileptonic B<sub>s</sub><sup>0</sup> decays" @default.
- W1549851888 doi "https://doi.org/10.2172/975165" @default.
- W1549851888 hasPublicationYear "2010" @default.
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