宇宙的物质-反物质不对称性与非平衡夸克和胶子的重子形成
Matter-Antimatter Asymmetry Of The Universe and Baryon Formation From Non-Equilibrium Quarks and Gluons
摘要：
重子数破缺、CP破坏和大爆炸后早期宇宙的非平衡演化被认为是解释观测到的宇宙物质-反物质不对称性（重子不对称性）的必要条件。由于没有观测到自由夸克，而重子是由夸克和胶子的禁闭形成的，为了研究宇宙的重子不对称性，有必要了解在大爆炸之后的早期宇宙中，重子是如何从非平衡夸克和胶子中首次形成的。本文从QCD的第一性原理出发，利用非平衡QCD的闭时路径积分方法，研究了大爆炸后早期宇宙中非平衡夸克和胶子的重子形成过程。
英文摘要：
Baryon number violation, CP violation and non-equilibrium evolution of the early universe just after the big bang are proposed in the literature to be necessary conditions to explain the observed matter-antimatter asymmetry (baryon asymmetry) of the universe. Since the free quarks are not observed and the baryons are formed by the confinement of quarks and gluons, it is necessary to understand how the baryons were formed for the first time from the non-equilibrium quarks and gluons in the early universe just after the big bang in order to study the baryon asymmetry of the universe. In this paper we study the baryon formation from the non-equilibrium quarks and gluons in the early universe just after the big bang from the first principle in QCD by using the closed-time path integral formalism in non-equilibrium QCD.
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