Session #2:
   Title: Hard Diffraction at DZero
Abstract: Using the DZero detector, we study events produced in proton-
          antiproton collisions that contain large forward regions with very
          little energy deposition (`rapidity gaps') and concurrent jet
          production, at center-of-mass energies 630 and 1800 GeV. In addition,
          we measure properties for similar topologies, but with W or Z 
          bosons produced instead of accompanying jets. The fractions of hard 
          scattering events that have rapidity gaps are compared with 
          predicitons from Monte Carlo models. The DZero calorimeter is
          also used to extract the fractional momentum loss of the scattered
          protons for hard-diffractive candidate events.

Session #3:
   Title: Measurement of the Differential Production Cross Section of W 
          Bosons as a function of Transverse Momentum at sqrt(s)= 1.8 TeV
Abstract: We present a measurement of the transverse momentum distribution of
          W bosons produced in proton-antiproton collisions at sqrt(s)=1.8 TeV.
          The data were collected by the DZero experiment at the Fermilab
          Tevatron Collider during the 1994-1995 run, and correspond to 
          85.0 pb**-1. Based on a combined perturbative QCD and soft-gluon
          resummation calculation, we find good agreement between our results
          and theoretical predictions over the measured range of
          transverse momentum (0-200 GeV/c).

Session #3:
   Title: Measurement of the Angular Distribution of Electrons from W to 
          e nu Decays in pbar p Collisions at sqrt(s)= 1.8 TeV
Abstract: We present a preliminary measurement of the alpha_2 parameter in 
          W to e nu decays using data collected by the DZero detector 
          during the 1994-1995 Tevatron run. We compare our results with 
          next-to-leading order perturbative QCD, which predicts an angular 
          distribution of (1 +/- alpha_1 cos theta*+ alpha_2 cos^2theta*), 
          where theta* is the angle between the charged lepton and the 
          antiproton in the Collins-Soper frame. In the presence of QCD 
          corrections, the parameters alpha_1 and alpha_2 become functions 
          of p_T(W), the transverse momentum of the W. We present the first 
          measurement of alpha_2 as a function of p_T(W). This measurement 
          provides a test of next-to-leading order QCD corrections, which 
          have a non-negligible impact on the measurement of the W mass.<br>
      
Session #3:
   Title: Inclusive Jet Cross Section using the kT Algorithm
Abstract: DZero has previously measured the central inclusive jet cross 
          section at sqrt(s)=1.8 TeV using the fixed-cone algorithm. The kT 
          jet algorithm, based on a successive combination of jets, has 
          recently been implemented at DZero. A preliminary measurement 
          of the inclusive jet cross section at sqrt(s)=1.8 TeV using the 
          kT algorithm, will be presented.

Session #3:
   Title: Probing BFKL Dynamics in the Dijet Cross Section at Large 
Abstract: Rapidity Intervals in pbar p Collisions at sqrt(s)=1800 and 630 GeV
	  Inclusive dijet production for large pseudorapidity intervals 
          (delta_eta) between the two jets has been suggested as a regime for
          observing BFKL dynamics. We have measured the dijet cross section
	  for large delta_eta in pbar p collisions at sqrt(s)=1800 and 630 GeV
	  using the DZero detector. The partonic cross section increases
	  strongly with the size of delta_eta. The observed growth is even 
	  stronger than expected on the basis of BFKL resummation in the
	  leading logarithmic approximation. The growth of the partonic
	  cross section can be accommodated with an effective BFKL intercept
	  of alpha_BFKL(20 GeV)=1.65+/-0.07.

Session #3:
   Title: Rapidity Dependence of Inclusive Jet Cross Section in pbar p
          Collisions at sqrt(s)=1.8 TeV
Abstract: We report on a new measurement of the rapidity dependence of the
          inclusive jet production cross section in pbar p collisions
          at sqrt(s)=1.8 TeV using 92 pb**-1 of data collected by the DZero
          detector at the Fermilab Tevatron collider. The differential
          cross section d^2sigma/dEt deta, is presented as a function of jet
          transverse energy (ET) in five pseudorapidity (eta) intervals, up to
          |eta|=3, thereby significantly extending previous CDF and DZero
          measurements beyond |eta|=0.7. The results are compared to 
          next-to-leading order QCD predictions. The extended range of the
          measurement promises to provide greater discrimination among 
          different parton distribution functions.

Session #3:
   Title: The Ratio of Dimensionless Jet Cross Sections at sqrt(s)=630 GeV
          and 1800 GeV
Abstract: The DZero collaboration has measured the inclusive jet cross section
          in pbar p collisions at sqrt(s)=630 GeV. The data for 
          pseudorapidities less than 0.5 are combined with data previously
          collected at sqrt(s)=1800 GeV to form a dimensionless ratio with
          smaller uncertainties. Although next-to-leading order predictions
          exhibit only modest agreement with the 630 GeV cross section,
          agreement is more satisfactory with the ratio. In particular,
          for most parton distribution functions, the dependence on transverse
          momentum is acceptable, but the absolute value disagrees with data
          by 10 to 15%.

Session #3:
   Title: Ratios of Multijet Cross Sections in pbar p Collisions at 
          sqrt(s)=1.8 TeV
Abstract: We report a study of the ratio of inclusive three-jet to two-jet
          production cross sections as a function of total transverse energy,
          in pbar p collisions at sqrt(s)=1.8 TeV, for data collected with the
          DZero detector during the 1992-1993 run of the Fermilab Tevatron 
          Collider. The measurements are well described by
          next-to-leading order QCD calculations, and can be used to gauge the
          sensitivity of the calculation to renormalization scales used 
          in modeling soft-jet emission.

Session #3:
   Title: Subjet Multiplicities Based on a kT Jet Algorithm
Abstract: Using the DZero detector, we measure the subjet multiplicity M 
          in jets reconstructed with a successive-combination type of jet 
          algorithm (kT). We select jets with 55<ET<100 GeV and 
          |eta|<0.5, and compare similar samples of jets at sqrt(s)=1800 
          and 630 GeV. The HERWIG Monte Carlo simulation predicts that 59% 
          of the jets are gluon jets at sqrt(s)=1800 GeV, and 33% at 
          sqrt(s)=630 GeV. Using this information from HERWIG, we extract 
          the subjet multiplicity in quark (Mq) and gluon (Mg) jets, and
          find the ratio R=<Mg-1>/<Mq-1>=1.91.

Session #7:
   Title: Search for Single Top Quark Production at DZero
Abstract: We present a search for electroweak production of single top quarks
          in the e+jets/mu and mu+jets/mu decay channels. The measurement 
          uses ~90 pb**-1 of data from Run1 of the Fermilab Tevatron Collider 
          collected with the DZero detector from 1992 to 1995. We set upper 
          limits on cross sections for the s-channel process ppbar->tb+X and 
          the t-channel process ppbar->tqb+X.

Session #7:
   Title: A DZero Measurement of b Jet Production
Abstract: Bottom quark production in hadronic collisions is studied with the 
          DZero detector at the Fermilab Tevatron pbar p collider at 
          sqrt(s)=1.8TeV. The production cross section for jets containing 
          b-quarks (b-jets) is measured in the pseudo-rapidity region 
          |eta|<1. The differential cross section as a function of jet 
          transverse energy is obtained from a sample of muon-tagged jets. 
          With focus on b-jets rather than open b-quarks, this new measurement
          affords less model dependence in comparing data with theory. Within 
          experimental and theoretical uncertainties, the observed cross 
          section is higher than, but compatible with, next-to-leading order 
          QCD predictions.

Session #7:
   Title: Spin Correlation in ttbar Production from ppbar Collisions
          at sqrt(s)=1.8 TeV
Abstract: The DZero Collaboration has performed a study of spin correlation
          in ttbar production for the process ttbar->bW+ bbarW-, where the W
          bosons decay to enu or munu. A sample of six events was collected
          during an exposure of the DZero detector to an integrated luminosity
          of approximately 125 pb**-1 of sqrt(s)=1.8 TeV ppbar collisions. 
          The standard model (SM) predicts that the short lifetime of the
          top quark ensures the transmission of any spin information at 
          production to the ttbar decay products. The degree of spin 
          correlation is characterized by a correlation coefficient K. We 
          find that K>-0.25 at the 68% confidence level, in agreement with
          the SM prediction of K=0.88.

Session #11:
   Title: Search for Large Extra Dimensions at DZero
Abstract: We have searched for the effects of virtual Kaluza-Klein gravitons
          predicted in the Arkani-Hamed, Dimopulous, Dvali theory of large
          spatial extra dimensions. Analyzing angular and invariant mass
          distributions of photon and electron pairs in 127 pb**-1 of data,
          we found complete agreement with expectations from the Standard
          Model. There were no anomalous events with high mass and low 
          scattering angle, characteristic of the virtual graviton exchange.
          We set lower limits on the compactification scale of large extra 
          dimensions between 1.0 and 1.4 TeV for the number of extra 
          dimensions between 2 and 7. These are the most restrictive limits 
          to date on large extra dimensions.

Session #11:
   Title: Search for R-parity Violation in Multilepton Final States in 
          pbar p Collisions at sqrt(s)=1.8 TeV
Abstract: The negative result of a search for associated gaugino pair 
          production with a trilepton signature at DZero, is reinterpreted
          in the framework of minimal supergravity models with R-parity 
          violation via leptonic Yukawa couplings. The search used
          95 pb**-1 of integrated luminosity of pbar p collisions at 
          sqrt(s)=1.8 TeV.

Session #11
   Title: Search for Charged Higgs Bosons in Decays of Pair-produced
          Top Quarks in DZero
Abstract: We present a search for t->bH+ in ttbar candidate events at DZero 
          based on two methods. The first seeks a decrease in expected signal,
          which would imply the presence of a non-SM decay of the top quark. 
          This search involves the full data sample of ~110 pb**-1 of ppbar
          collisions at sqrt(s)=1.8 TeV, collected with the DZero detector
          between 1992 and 1995. The second method looks for charged Higgs
          decays to taus (and associated neutrinos), and is based on a 
          62 pb**-1 subset of the aformentioned data sample.
          
Session #11
   Title: Search for New Physics in emuX Data at the Tevatron using 
          Sherlock: A Quasi-Model-Independent Search Strategy for New Physics
Abstract: We present a quasi-model-independent search for the physics
          responsible for electroweak symmetry breaking. We define final
          states to be searched, and construct a rule that identifies a
          set of relevant variables for any particular final state. A new
          algorithm (`Sherlock') searches for regions of excess in those
          variables, and quantifies the significance of any excess found. 
          After demonstrating the sensitivity of the method, we apply it to
          the semi-inclusive channel emuX collected in 108 pb**-1 of pbar p
          collisions at sqrt(s)=1.8 TeV at the DZero experiment during 
          1992-96 at the Fermilab Tevatron. Beyond ttbar and WW production,
          we find no evidence of new high p_T physics in this sample.

Session #11
   Title: A Search for Dilepton Signatures from Minimal Low-Energy 
          Supergravity in ppbar Collisions at sqrt(s)=1.8 TeV
Abstract: We report on a search for supersymmetry using the DZero detector. 
          The 1994-1996 data sample of sqrt(s)=1.8 TeV ppbar collisions was 
          analyzed for events containing two leptons (e or mu), two or more
          jets, and missing transverse energy. Assuming the minimal 
          supergravity model, with A0=0 and mu<0, various thresholds were 
          employed to optimize the search. No events were found beyond 
          expectation from background. We set a lower limit at the 95% CL of
          255 GeV for equal mass squarks and gluinos for tanbeta=2, and 
          present exclusion contours in the (m0, m1/2) plane for tanbeta=2 
          and 6. 

Session #11
   Title: Limits on Quark Compositeness from High Energy Jets in ppbar
          Collisions at 1.8 TeV
Abstract: Events in ppbar collisions at sqrt(s)=1.8 TeV with total transverse
          energy exceeding 500 GeV are used to set limits on quark 
          substructure. The data are consistent with next-to-leading order 
          QCD calculations. We set a lower limit of 2.0 TeV at 95% confidence
          on the energy scale Lambda_LL for compositeness in quarks, assuming
          a model with a left-left isoscalar contact interaction term. The
          limits on Lambda_LL are found to be insensitive to the sign of the
          interferencce term in the Lagrangian.