Cross section measurements of high-p(T) dilepton final- state processes using a global fitting method

The authors present a new method for studying high-p{sub T} dilepton events (e{ sup{+-}}e{ sup{-+}}, {mu}{ sup{+-}}{mu}{ sup{-+}}, e{ sup{+-}}{mu}{ sup{-+}}) and simultaneously extracting the production cross sections of p{bar p} {yields} t{bar t}, p{bar p} {yields} W{ sup+}W{ sup-}, and p{bar p} {yields} Z{ sup0} {yields} {tau}{ sup+}{tau}{ sup-} at a center-of-mass energy of {radical}s = 1.96 TeV. They perform a likelihood fit to the dilepton data in a parameter space defined by the missing transverse energy and the number of jets in the event. The results, which use 360 pb{ sup-1} of data recorded with the CDF II detector at the Fermilab TevatronCollider, are {sigma}(t{bar t}) = 8.5{sub -2.2}{ sup+2.7} pb, {sigma}(W{ sup+}W{ sup-}) = 16.3{sub -4.4}{ sup+5.2} pb, and {sigma}(Z{ sup0} {yields} {tau}{ sup+}{tau}{ sup-}) = 291{sub -46}{ sup+50} pb.