Quark Matter 2023

Exploring neutron stars with three conserved charges in a newly optimized C++ Chiral Mean Field code

5 Sept 2023, 17:30

2h 10m

Grand Ballroom, 4th floor ( Hilton of the Americas)

Poster Nuclear astrophysics Poster Session

Speaker

Mr Nikolás Cruz Camacho (University of Illinois at Urbana-Champaign)

Description

The Chiral Mean Field model (CMF) has been successful in describing the equation of state at large baryon densities, such as those found in neutron stars, neutron star mergers, and heavy-ion collisions. The MUSES collaboration has rewritten the zero-temperature CMF model from Fortran 77 into a parallelized modern C++20 using OpenMP, which has resulted in at least an order of magnitude improvement in runtime. We obtained equations of state across ${\mu }_B$, ${\mu }_S$, and ${\mu }_Q$, and within the metastable regime around the quark deconfinement phase transition. The improved numerical resolution allows for the accurate computation of higher-order derivatives such as susceptibilities. Finally, we computed neutron star observables like quadrupole moment, Love number, moment of inertia, and mass-radius curve.

Presentation materials

QM_2023_Nikolas_Cruz.pdf