D. Benton

Measurement of Dijet Angular Distributions by the Collider Detector at Fermilab.

We have used 106 pb^-1 of data collected in proton-antiproton collisions at sqrt(s)=1.8 TeV by the Collider Detector at Fermilab to measure jet angular distributions in events with two jets in the final state. The angular distributions agree with next to leading order (NLO) predictions of Quantum Chromodynamics (QCD) in all dijet invariant mass regions. The data exclude at 95% confidence level (CL) a model of quark substructure in which only up and down quarks are composite and the contact interaction scale is Lambda_ud(+)<1.6 TeV or Lambda_ud(-)<1.4 TeV. For a model in which all quarks are composite the excluded regions are Lambda(+)<1.8 TeV and Lambda(-)<1. 6 TeV.

Observation of Top Quark Production in p-barp Collisions with the Collider Detector at Fermilab.

We establish the existence of the top quark using a 67pb{sup {minus}1} data sample of {ital p}{ovr bar}{ital p} collisions at {radical}{ital s}=1.8TeV collected with the Collider Detector at Fermilab (CDF). Employing techniques similar to those we previously published, we observe a signal consistent with {ital tb}{ovr bar}, but inconsistent with the background prediction by 4.8{sigma}. Additional evidence for the top quark is provided by a peak in the reconstructed mass distribution. We measure the top quark mass to be 176{plus_minus}8(stat){plus_minus}10(syst)GeV/{ital c}{sup 2}, and the {ital tt}{ovr bar} production cross section to be 6.8{sub {minus}2.4}{sup +3.6}pb.We establish the existence of the top quark using a 67 pb^-1 data sample of Pbar-P collisions at Sqrt(s) = 1.8 TeV collected with the Collider Detector at Fermilab (CDF). Employing techniques similar to those we previously published, we observe a signal consistent with t-tbar decay to WW b-bbar, but inconsistent with the background prediction by 4.8 sigma. Additional evidence for the top quark is provided by a peak in the reconstructed mass distribution. We measure the top quark mass to be 176 +/-8(stat) +/- 10(sys.) GeV/c^2, and the t-tbar production cross section to be 6.8 +3.6 -2.4 pb.

Measurement of sigma B(W-->e nu ) and sigma B(Z0-->e+e-) in pp-bar collisions at sqrt s =1.8 TeV.

We present a measurement of

Search for chargino-neutralino production in pp-bar collisons at sqrt s=1.8 TeV.

\sigma \cdot B(W \to e \nu)

Limits on WWZ and WW gamma couplings from WW and WZ production in pp-bar collisions at sqrt s=1.8TeV.

and

Charge asymmetry in [ital W]-boson decays produced in [ital p[bar p]] collisions at [radical][ital s]= 1. 8 TeV

\sigma \cdot B(Z^0 \to e^+e^-)

Evidence for top quark production in [ital [bar p]p] collisions at [radical][ital s] =1. 8 TeV

in proton - antiproton collisions at

Evidence for top quark production in p-barp collisions at sqrt s =1.8 TeV.

\sqrt{s} =1.8

Measurement of the ratio sigma B(W-->e nu )/ sigma B(Z0-->e+e-) in p-barp collisions at sqrt s =1.8 TeV.

TeV using a significantly improved understanding of the integrated luminosity. The data represent an integrated luminosity of 19.7 pb

Measurement of the ratio [sigma][ital B]([ital W][r arrow][ital e][nu])/[sigma][ital B]([ital Z][sup 0][r arrow][ital e][sup +][ital e][sup [minus]]) in [ital [bar p]p] collisions at [radical][ital s] =1. 8 TeV

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