Friday, June 26, 2020, 9:00 am — Webcast
With the first detection of gravitational waves from a binary system of neutron stars, GW170817, a new window was opened to study the properties of matter at and above nuclear-saturation density. Reaching densities a few times that of nuclear matter and temperatures up to 100 MeV, such mergers represent potential sites for a phase transition from confined hadronic to deconfined quark matter. While for GW170817 the postmerger signal could not be detected, such a signal will be a powerful observable in the near future. In this seminar I will present the possible scenarios of how a phase transition to quark-gluon plasma can take place in the postmerger phase of a binary neutron star merger. I will focus on the most recently explored scenario of a so-called ``delayed phase transition'', where the merger remnant transitions from a purely hadronic hypermassive neutron star to a meta-stable hypermassive hybrid star with a dense quark core. This process promises to yield the strongest signature in the gravitational-wave signal for the production of quark matter in the present Universe. Bluejeans link: https://bnl.bluejeans.com/726276981
Hosted by: Nikhil Karthik
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