TY - JOUR
T1 - Sound velocity, equation of state and strangeness in neutron star matter
AU - Weise, Wolfram
N1 - Publisher Copyright:
© 2024 The Authors, published by EDP Sciences.
PY - 2024/2/16
Y1 - 2024/2/16
N2 - This presentation in two parts starts with a brief review on the speed of sound in neutron star matter as inferred from observational data. It is pointed out that, in view of the strong constraints imposed by observed properties of the heaviest neutron stars, the equation of state must be very stiff. Stringent limits can be set on the possible appearance of phase transitions in neutron star cores. The second part discusses issues concerning the occurance of strangeness degrees of freedom, in particular of hyperons, in neutron stars. Here the focus is on the role of repulsive hyperon-nuclear three-body forces, potentially resolving the so-called hyperon puzzle.
AB - This presentation in two parts starts with a brief review on the speed of sound in neutron star matter as inferred from observational data. It is pointed out that, in view of the strong constraints imposed by observed properties of the heaviest neutron stars, the equation of state must be very stiff. Stringent limits can be set on the possible appearance of phase transitions in neutron star cores. The second part discusses issues concerning the occurance of strangeness degrees of freedom, in particular of hyperons, in neutron stars. Here the focus is on the role of repulsive hyperon-nuclear three-body forces, potentially resolving the so-called hyperon puzzle.
UR - http://www.scopus.com/inward/record.url?scp=85191545600&partnerID=8YFLogxK
U2 - 10.1051/epjconf/202429101007
DO - 10.1051/epjconf/202429101007
M3 - Conference article
AN - SCOPUS:85191545600
SN - 2101-6275
VL - 291
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
M1 - 01007
T2 - 17th International Workshop on Meson Physics, MESON 2023
Y2 - 22 June 2023 through 27 June 2023
ER -