Conveners
Extreme Matter
- Michael Strickland (Kent State University)
Description
co-host: Matthew Sievert
Neutron stars are fascinating laboratories for strong gravity, multi-messenger astronomy and nuclear physics. In this talk, I will show how neutron star mergers can probe extreme states of matter, such as the appearance of hyperons at high densities and the deconfinement of quarks. I will also present how these effects are encoded in the high-frequency part of gravitational wave...
We investigate the phase transition from hadron to quark matter expected to take place in dense and/or hot matter in the general case without the assumption of chemical equilibrium. This is the case for matter produced in particle collisions, in very young, or recently merged neutron stars. In each of these cases, different conditions concerning temperature, density, strangeness and isospin...
The observation of gravitational waves from low mass compact objects (be it black holes or neutron stars) opens up the possibility to learn about nuclear physics at baryon densities above nuclear saturation and at very low temperatures. Interestingly, introducing non-trivial structure in the speed of sound sourced by changes in the degrees of freedom (possibly quarks) of ultra-dense matter can...
The quark-matter phase of neutron stars is thought to be governed by short-range interactions among quark and gluons within Quantum Chromodynamics (QCD). Pressure, energy, as well as other mechanical properties of the nucleon are encoded in the QCD Energy-Momentum Tensor. The matrix elements of this tensor are connected to the Mellin moments of the generalized parton distributions which can be...
The Jefferson Laboratory parity violating electron scattering experiments PREX and CREX cleanly measure the neutron densities of 208Pb and 48Ca. This has implications for the equation of state of neutron rich matter and the structure of neutron stars. We compare PREX results to NICER X-ray telescope observations of neutron star radii and LIGO gravitational wave observations of neutron star...
