Quarkyonic or baryquark matter

Journal Article · 15 January 2025 · Journal of Subatomic Particles and Cosmology

DOI: https://doi.org/10.1016/j.jspc.2025.100025 · OSTI ID:2549300

Koch, Volker  ^[1]; Vovchenko, Volodymyr  ^[2]

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1. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
2. University of Houston, TX (United States)

Here, it has been proposed that at high densities nuclear matter will consist of a Fermi sea of quarks surrounded by a small shell of confined baryon at the large momenta, so called Quarkyonic matter. In this contribution we will discuss an alternative configuration, dubbed Baryquark matter, which in a sense is a complement of Quarkyonic matter. Baryquark matter consists of a Fermi sea of confined baryons surrounded by a shell of deconfined quarks. Following Koch and Vovchenko (2023) we will show that for certain (simplified) implementations Baryquark matter is energetically favored over Quarkyonic matter. We will then briefly discuss how the inclusion of the quark structure of nucleons will lead to a configuration which resembles the picture of Quarkyonic matter.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: AC02-05CH11231
• OSTI ID: 2549300
• Journal Information: Journal of Subatomic Particles and Cosmology, Journal Name: Journal of Subatomic Particles and Cosmology Vol. 3; ISSN 3050-4805
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English