A Pedagogical Discussion of Quarkyonic Matter and Its Implication for Neutron Stars

Journal Article · Fri May 01 00:00:00 EDT 2020 · Acta Physica Polonica. Series B

DOI:https://doi.org/10.5506/aphyspolb.51.1067· OSTI ID:1799990

McLerran, Larry ^[1]

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1. Univ. of Washington, Seattle, WA (United States). Institute for Nuclear Theory

This paper is a brief pedagogical review of the ideas that motivate the concept of Quarkyonic Matter. If N_c is the number of quark colors, baryonic matter at very high density and low temperature remains confining to density scales of the order of N$$3/2\atop{c}$$ Λ$$3\atop{QCD}$$ that is parametrically larger than that of the QCD scale Λ$$3\atop{QCD}$$. This implies that a description of nuclear matter will involve both quark and confined degrees of freedom. I argue that the equation of state of Quarkyonic Matter should be very hard, and the sound velocity should rise very rapidly from its small value at nuclear matter densities to a value of the order of 1 at a few times nuclear matter density.

• Research Organization: Univ. of Washington, Seattle, WA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: FG02-00ER41132
• OSTI ID: 1799990
• Journal Information: Acta Physica Polonica. Series B, Vol. 51, Issue 5; ISSN 0587-4254
• Publisher: Jagiellonian University
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS