Limit on the neutral strange B meson neutral strange anti-B meson oscillation frequency from proton-antiproton collision data at center of mass energy = 1.8 TeV

This thesis presents a limit on the oscillation frequency from pp¯ collision data at $s$ = 1.8 TeV at CDF. The data sample used is the inclusive electron and muon trigger data of approximately 90 pb−1 collected during the 1993–1995 run. The $B0s$ meson is reconstructed as $B0s$ → νℓD_s, where D _s → &phis;π or K*0 K. The initial flavor of the $B0s$ meson is determined from the decay products of the other b-hadron in the event, using opposite-side jet charge and soft lepton tagging methods. When combined with CDF previous measurements, a lower limit of Δm_s > 6.3 ps−1 is determined.