Event ID: INT-25-94W

Note to applicants: This is a "hybrid" workshop, meaning there will be a combination of virtual and in-person participants. In the COMMENTS section of the Application Form, please write [In-person], [Virtual], or [Either] to reflect your preferred mode of attendance. 

OVERVIEW

Considerable efforts to investigate the equation of state (EOS) of dense matter by observing gravitational waves (GWs) from neutron star mergers, mainly by constraining the neutron star radius, have been made in recent years. However, a wide array of phenomena cannot be studied just by investigating the static properties of nuclear matter. With next-generation GW detectors anticipated for the next decade, there will soon be exciting, new opportunities to probe effects beyond the EOS in nuclear matter, in particular, with GW signals emitted by massive neutron star remnants that form after a merger.

To learn as much as possible from the forthcoming observations of post-merger GW and multi-messenger counterpart signals, significant improvements in our understanding and capabilities of how nuclear matter behaves in these extreme environments are necessary. Beyond the equation-of-state physics like flavor equilibration, neutrino physics, exotic degrees of freedom, (color-) superfluidity and superconductivity, and beyond-the-standard-model particles might leave direct measurable imprints on observed signals. Furthermore, these effects, if ignored in the investigation of the equation of state, will lead to systematic errors that will make a correct and precise determination of the EOS impossible.

This workshop will bring together different areas of nuclear physics, astrophysics, and gravitational theory to discuss the necessary steps and advances required for us to fully leverage the opportunities posed by multi-messenger gravitational astronomy in the coming years and beyond.

TOPICS AND FORMAT

We are planning a highly interactive workshop with 6-7 talks per day. Each day will focus on one of the subtopics of our planned workshop and start with a longer introductory talk that will allow all participants from different subfields to get on the same page and get familiar with the main issues and topics in each field. The remaining talks will be broken up into 30-45 minute time slots. In the afternoon we plan a guided group discussion session among all participants. These sessions are meant to pose questions to the different communities and discuss possible solutions in an open format. This schedule should leave time for free discussions in smaller groups to kickstart collaborations.

This workshop is held in collaboration and embedded into program 25-2b, “From Colliders to the Cosmos: Exploring the Extremes of Matter with Experiment and Astrophysical Observation”, organized by N. Andersson, C. Ratti, and B. Sathyaprakash. If you wish to attend any of the program weeks, you must apply to the program separately.

A workshop registration fee may apply.