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Sep 5 – 9, 2022
online
US/Eastern timezone
Thank you to all the participants for a great QNP2022!

From hadrons to quarks in neutron stars

Sep 6, 2022, 12:30 PM
25m
online

online

FSU, Tallahassee, FL, USA

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)

Presentation materials