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9th Workshop of the APS Topical Group on Hadronic Physics

Apr 13 – 16, 2021
US/Eastern timezone

Session

Extreme Matter

Apr 14, 2021, 1:30 PM

Conveners

Extreme Matter

  • Michael Strickland (Kent State University)

Description

co-host: Matthew Sievert

Presentation materials

There are no materials yet.

  1. 274. Neutron star mergers as probes for extreme matter
    Elias Most (Princeton University)
    4/14/21, 1:30 PM
    Oral Presentation

    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...

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  2. 265. Comparisons among neutron-star mergers and heavy-ion collisions
    Veronica Dexheimer (Kent State University)
    4/14/21, 1:50 PM
    Oral Presentation

    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...

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  3. 269. What can we learn from gravitational waves emitted by heavy neutron stars mergers?
    Nicolas Yunes (University of Illinois at Urbana-Champaign)
    4/14/21, 2:10 PM
    Oral Presentation

    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...

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  4. 273. Bounds on the Equation of State of Neutron Stars from the QCD Energy-Momentum Tensor
    Abha Rajan (Old Dominion University)
    4/14/21, 2:30 PM
    Oral Presentation

    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...

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  5. 272. The PREX/CREX experiments and neutron rich matter in the lab
    Charles Horowitz (Indiana University)
    4/14/21, 2:50 PM
    Oral Presentation

    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...

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