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HIGH ENERGY PHYSICS SEMINAR TODAY<br class="">
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Monday November 16, 2015<br class="">
ERC 401<br class="">
4:15pm<br class="">
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Speaker: Jon Rosner (UChicago)<br class="">
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Title: <span class="" style="font-weight: 700;">Tetraquarks and Pentaquarks </span>
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Abstract: The LHCb Collaboration at CERN have reported two new structures in the J/psi p mass spectrum: a broad one at 4380 MeV and a narrow one at 4450 MeV. These are candidates for "pentaquarks" (states of four quarks and an antiquark). Work describing the
interpretation of the narrow state as a molecule of a charmed baryon and anticharmed meson is described. A brief historical survey of the forerunners of these states, exotic mesons dubbed "tetraquarks", is also given.</div>
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<div class="">If you’re interested in joining the guest speaker for dinner, please email me and/or Mark Oreglia.</div>
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