Speaker
TORU KOJO
(Tohoku University)
Description
I discuss neutron star matter from the picture of quark-hadron continuity. Recent neutron observations indicate that 2.1- and 1.4-solar mass neutron stars have similar radii, disfavoring the presence of strong first order phase transitions in the domain between ~2n0 and ~5n0 with n0 being nuclear saturation density. Meanwhile ~5n0 is the density where baryons are expected to overlap and therefore may be regarded as quark matter. These considerations together lead us to the scenario of quark-hadron continuity. I argue how the sound velocity peak follows from this conjecture, emphasizing the importance to keep track of quark states from nuclear to quark matter.
| speaker affiliation | Tohoku University |
|---|
Primary author
TORU KOJO
(Tohoku University)
