W charge asymmetry measurement and Z' search at CDF

The charge asymmetry as a function of lepton rapidity, A(yl), has been measured at √s = 1.8 TeV for |yl| < 1.8, using the W decays to electrons and muons recorded by CDF during the 1992-93 run of the Tevatron Collider. Compared to the previous 1988-89 run, the increase in luminosity and detector improvements have lead to a six fold increase in statistics making discrimination between sets of parton distributions possible. This data favors the most recent parton distributions and demonstrates the value of collider data in the measurement of the proton's structure. The author also presents here a search for an additional neutral heavy boson, Z', in the dielectron decay mode. The observed dielectron invariant mass spectrum is in good agreement with that expected from the decays of the standard Z and from the Drell-Yan process. Analysis obtains a 95% c.l. limit on the production cross section times the branching ratio for a Z' decaying into electron pairs as a function of the dielectron invariant mass. It also sets a 95% confidence level lower bound on the mass of the Z' to be 495 GeV/c2 assuming standard coupling strengths