Search for the standard model Higgs boson produced in association with a Z boson in 7.9 fb - 1 of p over(p, -) collisions at sqrt(s) = 1.96 TeV using the CDF II detector
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics (2012)
Measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ-)X decays in p̄p collisions at √s=1.96TeV
Physical Review Letters 107:27 (2011)
Abstract:
We present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0→Ds-(Φπ-)X decays in 1.3fb-1 collected in pp̄ collisions at √s=1.96TeV by the CDF II detector at the Fermilab Tevatron. We measure τ(Bs0)=1.518±0.041(stat)±0. 027(syst)ps. The ratio of this result and the world average B0 lifetime yields τ(Bs0)/τ(B0)=0.99±0.03, which is in agreement with recent theoretical predictions. © 2011 American Physical Society.Search for a heavy toplike quark in pp̄ collisions at √s=1.96TeV
Physical Review Letters 107:26 (2011)
Abstract:
We present the results of a search for pair production of a heavy toplike (t′) quark decaying to Wq final states using data corresponding to an integrated luminosity of 5.6fb-1 collected by the CDF II detector in pp̄ collisions at √s=1.96TeV. We perform parallel searches for t′→Wb and t′→Wq (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t′ quark mass, we set upper limits on the t′t̄′ production cross section and exclude a standard model fourth-generation t ′ quark decaying to Wb (Wq) with mass below 358 (340)GeV/c2 at 95% C.L. © 2011 American Physical Society.Measurement of polarization and search for CP violation in Bs 0→φφ decays
Physical Review Letters 107:26 (2011)
Abstract:
We present the first measurement of polarization and CP-violating asymmetries in a Bs0 decay into two light vector mesons, Bs0→φφ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9fb-1 of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be fL=0.348±0.041(stat)±0.021(syst), and the branching ratio B(Bs0→φφ)=[2.32±0.18(stat)±0. 82(syst)]×10-5. Asymmetries of decay angle distributions sensitive to CP violation are measured to be Au=-0.007±0. 064(stat)±0.018(syst) and Av=-0.120±0.064(stat) ±0.016(syst). © 2011 American Physical Society.Measurement of the Top Quark Mass in the All-Hadronic Mode at CDF
ArXiv 1112.4891 (2011)