Bulletin of the American Physical Society
2021 Fall Meeting of the APS Division of Nuclear Physics
Volume 66, Number 8
Monday–Thursday, October 11–14, 2021; Virtual; Eastern Daylight Time
Session QA: Connecting Heavy-Ion Collisions to Neutron Star Mergers |
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Chair: Jorge Norohna, University of Illinois at Urbana-Champaign Room: Ballroom B |
Thursday, October 14, 2021 11:30AM - 12:06PM |
QA.00001: How Can Heavy-Ion Experiments Help Us Understand Neutron Star Mergers? Invited Speaker: Tetyana Galatyuk The microscopic properties of the strong-interaction matter under extreme conditions of temperature and density is a topic of great current interest. Despite 18 orders of magnitude difference in system size and time, the conditions present in heavy-ion collisions share great overlap with the conditions of the strong-interaction matter in neutron-star mergers. Unravelling the origin of nuclear symmetry energy and its density dependence, understanding the role of the isospin degree of freedom, determining the equation of state of nuclear matter at high density and the presence of a phase transition are among important physics questions. |
Thursday, October 14, 2021 12:06PM - 12:42PM |
QA.00002: Unraveling the Properties of Ultradense Matter with Neutron Star Merger Simulations Invited Speaker: Elias R Most Neutron stars are fascinating laboratories for strong gravity, multi-messenger astronomy and nuclear physics. |
Thursday, October 14, 2021 12:42PM - 1:18PM |
QA.00003: Can Deconfinement Occur in Neutron Stars? Invited Speaker: Veronica Dexheimer The large density reached in neutron stars and the large density and temperature reached in neutron-star mergers create ideal testing grounds in which to learn about exotic matter, namely hyperons and deconfined quarks. The presence of exotic matter can strongly affect the interior of neutron stars but cannot be easily observed. New electromagnetic and gravitational-wave constraints have been slowly narrowing down the dense and cold equation of state and allowing us to learn more about the strong interaction. Nevertheless, constraints on dense and hot matter depend on the not yet observed post-merger portion of gravitational waves from neutron-star mergers and non-trivial comparisons with particle collisions in the laboratory. In this talk, I address these issues, giving special attention to possible constraints coming from extremely massive neutron stars. |
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