Abstract
Since March 2001 a new period of CDF data taking (called Run II) began at the p{bar p} Tevatron collider. The upgrade of Collider Detector at Fermilab improved the tracking system: the vertexing, triggering and particle identification capabilities. This has allowed a further development of B physics, because the B{sub s} and {Lambda}{sub b} are produced in hadronic collisions. Here measurements of the mass and lifetime of {Lambda}{sub b} in two decay channels are presented. Using particle identification (PID) information from the time of flight and the dE/dx, CDF performed pentaquark searches for {Theta}{sup +}, {Xi}{sub 3/2}{sup --,0} and {Theta}{sub c}{sup 0}, following the recent interest in exotic baryon spectroscopy.
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