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arXiv 2103.05679nucl-thhep-phhep-th
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夸克有效场论、夸克-核子对偶性和鬼

Quarkyonic Effective Field Theory, Quark-Nucleon Duality and Ghosts

Dyana C. Duarte, Saul Hernandez-Ortiz, Kie Sang Jeong, Larry D. McLerran

摘要:

我们提出了由夸克、核子和鬼场耦合到介子自由度组成的夸克物质的场论描述。鬼的存在是为了消除被夸克费米海阻挡的泡利核子态的过度计数。这样的理论成为低重子密度下核子的有效场论,并将再现核子物质现象学。这个理论可以容纳手征对称性恢复和核子壳层在费米面的动力学产生。它适用于有限温度和密度。在这样的理论中,夸克-核子对偶性是通过包含鬼场来实现的,这样核子超出夸克的额外自由度就被鬼场补偿了。

英文摘要:

We present a field theoretical description of quarkyonic matter consisting of quark, nucleon and ghost fields coupling to mesonic degrees of freedom. The ghosts are present to cancel over-counting of nucleon states that are Pauli blocked by the quark Fermi sea. Such a theory becomes an effective field theory of nucleons at low baryon density, and as such will reproduce nucleonic matter phenomenology. This theory can accommodate chiral symmetry restoration and the dynamical generation of a shell of nucleons at the Fermi surface. It is valid for finite temperature and density. In such a theory, quark-nucleon duality is accomplished by inclusion of ghost fields so that the nucleons extra degrees of freedom, that are beyond those of quarks, are compensated by the ghost fields.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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