QM 2022

Session

Parallel Session T10: Baryon rich matter, neutron stars, and gravitational waves

6 Apr 2022, 08:40

Auditorium Maximum UJ

Conveners

Parallel Session T10: Baryon rich matter, neutron stars, and gravitational waves

• David Blaschke

680. Gravitational Waves Probing Quark Matter Crossover

Prof. Kenji Fukushima (The University of Tokyo)

06/04/2022, 08:40

Baryon rich matter, neutron stars, and gravitational waves

Oral presentation

Crossover Scenario
If there were a first-order phase transition, some signatures could be expected, but the most challenging is an experimental confirmation of realistic crossover scenario. It is already known from the NS observations / pQCD calculations that a crossover transition to quark matter is likely to occur around 3-5 times normal nuclear density, where a slope parameter on the...

658. QCD in the cores of neutron stars

Mr Oleg Komoltsev (University of Stavanger)

06/04/2022, 09:00

Baryon rich matter, neutron stars, and gravitational waves

Oral presentation

I discuss the recent progress in state-of-the art perturbative QCD calculations of the equation of state at large chemical potential. I describe why these calculations that are reliable at asymptotically high densities constrain the equation of state at neutron star densities, and describe how the theoretical calculations can be confronted with multimessenger observations to empirically...

337. Reconciling multi-messenger constraints with chiral symmetry restoration

Michał Marczenko

06/04/2022, 09:20

Baryon rich matter, neutron stars, and gravitational waves

Oral presentation

In this talk, we analyze the recent astrophysical constraints in the context of a hadronic equation of state (EoS), in which the baryonic matter is subject to chiral symmetry restoration. We show that it is possible to reconcile the modern constraints on the neutron star (NS) radius and tidal deformability (TD). We find that the softening of the EoS (required by the TD constraint) followed by...

787. Mirror neutron stars: how QCD can be used to study dark matter through gravitational waves

Mauricio Hippert Teixeira (University of Illinois at Urbana-Champaign)

06/04/2022, 09:40

Baryon rich matter, neutron stars, and gravitational waves

Oral presentation

Given the lack of empirical evidence of weakly interacting dark matter, it is reasonable to look to other candidates such as a confining dark sector with a similar number of particles as the standard model. Twin Higgs mirror matter is one such model that is a twin of the standard model with particles masses 3-6 times heavier than the standard model that solves the hierarchy problem. This...

211. Precision studies of the strong interaction in $\Lambda$-hadron systems up to $S = -3$ with ALICE

Valentina Mantovani Sarti (Technische Universitaet Muenchen (DE))

06/04/2022, 10:00

Baryon rich matter, neutron stars, and gravitational waves

Oral presentation

The strong interaction among stable and unstable hadrons is a fundamental question in nuclear physics and a key ingredient for the description of the equation of state and the understanding of the structure of dense stellar objects such as neutron stars. Traditional measurements, including scattering and hypernuclei experiments, are insufficient to provide stringent constraints to the...

929. Early quark deconfinement in compact star astrophysics and heavy-ion collisions at NICA/FAIR*)

Oleksii Ivanytskyi (University of Wroclaw)

06/04/2022, 10:20

Baryon rich matter, neutron stars, and gravitational waves

Oral presentation

We outline the role that an early deconfinement phase transition from normal nuclear matter to a color superconducting quark-gluon plasma phase plays for the phenomenology of supernova explosions and binary neutron star mergers. To this end we extend the compact star equation of state (EoS) from vanishing to moderately high temperatures that become accessible in the BM(a)N and MPD experiments...