Undergraduate

NPA Seminar, Jacquelyn Noronha-Hostler, University of Illinois Urbana-Champaign , "From Little Bangs in the Laboratory to Neutron Star Mergers"

Unlike phase diagrams in condensed matter that can be probed in the laboratory, the Quantum Chromodynamics (QCD) phase diagram can only be mapped out through both experiments and astrophysical phenomena. At low baryon densities and high temperatures it is explored both through the big bang and the little bangs produced in heavy-ion collisions. At large baryon densities, either low-energy heavy-ion experiments or neutron star mergers can be used to map out its potential phases.

NPA Seminar, Steven Prohira, Ohio State University, "Toward Detection of UHE Neutrinos with the Radar Echo Telescope"

Detection of ultra-high-energy (UHE) neutrinos is the key to understanding the most energetic processes in the universe, namely, the sources of UHE cosmic rays which have been detected at earth with energies exceeding 1 Joule per nucleon. As UHE cosmic messengers, neutrinos are unparalleled for their ability to travel from source to Earth. Unfortunately, however, they are very difficult to detect, owing to their low flux and small interaction cross section.

NPA Seminar, Christian Wittweg, University of Zurich, "Recent Results and Status of the XENON Dark Matter Project"

The XENON Dark Matter Project uses xenon dual-phase time projection chambers for direct Dark Matter detection. With steadily growing target masses the XENON detectors set world-leading limits on WIMP-nucleon interactions over a broad mass range – most recently with XENON1T. Its unprecedentedly low backgrounds coupled with the tonne-year exposure also enabled searches for rare nuclear processes, the coherent elastic scattering of solar neutrinos and alternative Dark Matter candidates.

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