Jean Barrette, McGill University

Physics Professor Montreal, Quebec jean.barrette@mcgill.ca Office: (514) 398-7030

Bio/Research

My main research interest is the study of nucleus-nucleus collisions at relativistic energies. The primary goal of this research is the study of the equation of state of hot hadronic matter and the phase transition to the new phase of matter, the quark gluon plasma. Our research program has now m...

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Bio/Research

My main research interest is the study of nucleus-nucleus collisions at relativistic energies. The primary goal of this research is the study of the equation of state of hot hadronic matter and the phase transition to the new phase of matter, the quark gluon plasma. Our research program has now moved to RHIC and LHC energies where our present effort is on the understanding of the evolution of some experimental observables as the beam energy is increased to the energy that are now available at this new heavy-ion collider. One of our present works is a comparison between model predictions and the new data to help determine the observables that provide the best signature for new physics at RHIC. One of our studies aims at understanding the importance of hard process including the quenching effect of nuclear matter on the propagation of jets. We contribute in the development of event generators and test the implementation of some new physics in the models relevant to RHIC, in particular, hard physics related to perturbative QCD. An important effort has been devoted to the development of a new version (v2.0) of the HIJING/BB Monte Carlo nuclear collision event generator in order, in particular, to explore further the possible role of baryon junctions loops in the baryon/meson anomaly observed at moderate pt in heavy-ion reactions at RHIC energy.

In our most recent works we have demonstrated the influence of strong color field effects on baryon production in heavy-ion reactions at RHIC and the LHC. We have shown that the RHIC data show evidence of an important increase of the string tension, i.e. an in-medium value in Au+Au collisions at RHIC that is roughly the double of the vacuum value. We have also shown that multi-strange hyperons production is particularly sensitive to strong color field effects and will be a very sensitive probe of the evolution of the in-medium parameters of QCD at the LHC.



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