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Research Summary:

Professor Barberis's research in experimental high energy physics is focused on the study of matter at the smallest distance scale. As a member of the DØ experiment at the Tevatron Collider at Fermilab, Prof. Barberis is currently studying collisions of protons and antiprotons at a center of mass energy of 2 TeV, the highest ever produced by particle accelerators. At such energy scale, the fundamental constituents in the protons and antiprotons interact to produce other massive states, such as the Top quark, discovered by the Tevatron Collider experiments, DØ and CDF, in 1995. The focus of Prof. Barberis work is the detailed study of the top quark properties, and the search for the mechanism responsible for the generation of all particles masses (in the Standard Model of particle physics, the Higgs field).

On the DØ experiment, Prof. Barberis led the effort to design and implement the software system which reconstructs events recorderd by the Silicon Microstrip tracker, and she is now co-leading the Top quark physics analysis group.

As a natural continuation of her involvement on the DØ experiment, Prof. Barberis is joining the CMS experiment at the LHC collider at CERN, which will extend the hadron collider program to a center of mass energy of 14 TeV.

Before joining the DØ Experiment, Prof. Barberis worked on the ZEUS experiment at DESY in Hamburg, Germany. The ZEUS experiment uses the high energy collisions of electrons and protons to perform detailed studies of the structure of the proton.

Recent Publications :

"Evidence for Production of Single Top Quarks and First Direct Mmeasurement of |Vtb," DZero Collaboration, V.M.Abazov et al., Phys. Rev. Lett. 98, 181902 (2007).

"Measurement of the ttbar Cross Section in ppbar Collisions at sqrt(s)=1.96 TeV Using Secondary Vertex b tagging," DZero Collaboration, V.M.Abazov et al., Phys. Rev. D 74, 112004 (2006).

"Measurement of the Top Quark Mass in the lepton+jets Final State with the Matrix Element Method," DZero Collaboration, V.M.Abazov et al., Phys. Rev. D 74, 092005 (2006).

"Direct Limits on B_s⁰ Oscillation Frequency," DZero Collaboration, V.M.Abazov et al., Phys. Rev. Lett. 97, 021802 (2006).

"The Upgraded DZero Detector," V.M.Abazov et al., Nucl. Instr. and Methods A 565, 463 (2006).