Spin polarizations under a pseudovector interaction between quarks with the Kobayashi-Maskawa-'t Hooft term in high density quark matter

TL;DR

This paper explores how pseudovector condensates, influenced by flavor mixing via the Kobayashi-Maskawa-'t Hooft interaction, can lead to quark spin polarization in high-density quark matter, especially involving strange quarks.

Contribution

It demonstrates that strange quark pseudovector condensates are more easily formed and appear at lower chemical potentials due to flavor mixing effects.

Findings

Strange quark pseudovector condensate occurs more readily.

Pseudovector condensate related to strange quarks appears at lower chemical potential.

Flavor mixing influences the formation of spin-polarized phases.

Abstract

A possibility of a quark spin polarization originated from a pseudovector condensate is investigated in the three-flavor Nambu-Jona-Lasinio model with the Kobayashi-Maskawa-'t Hooft interaction which leads to flavor mixing. It is shown that a pseudovector condensate related to the strange quark easily occurs compared with pseudovector condensate related to light quarks. Further, it is shown that the pseudovector condensate related to the strange quark appears at a slightly small chemical potential by the effect of the flavor mixing due to the Kobayashi-Maskawa-'t Hooft interaction.