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My research centers on the theoretical description and interpretation of relativistic heavy ion collisions. In these experiments, heavy nuclei such as gold or lead, are collided head on at ultrarelativistic energies. The resulting collisions can create mesoscopic regions where temperatures exceed 1012 Kelvin. At these temperatures, densities become so high that hadrons overlap which makes it impossible to identify individual hadrons and one attains a new state of matter, the strongly interacting quark gluon plasma. The QCD structure of the vacuum, which through its coupling to neutrons and protons is responsible for much of the mass of the universe, also melts at these temperatures. Unfortunately, the collision volumes are so small (sizes of a few times 10-15 m) and the expansions are so rapid (expands and disassembles in less than 10-21 s) that direct observation of the novel state of matter is impossible. Instead, one must infer all properties of the matter from the measured momenta of the outgoing particles. Thus, progress is predicated on careful and detailed modeling of the entire collision.
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arXiv (Cornell University) (2023)
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Physical Review Cno. 1 (2023)
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D. Almaalol,M. Hippert, J. Noronha-Hostler,J. Noronha,E. Speranza,G. Basar,S. Bass, D. Cebra,V. Dexheimer,D. Keane, S. Radhakrishnan, A. I. Sheikh,
arxiv(2022)
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