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arXiv 0712.3167hep-thastro-phhep-ph
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关于SQCD中的质谱,以及Seiberg对偶的问题。等夸克质量

On Mass Spectrum in SQCD, and Problems with the Seiberg Duality. Equal quark masses

Victor L. Chernyak

摘要:

本文考虑了N = 1的SQCD的动力学情形,其色数为N_c,味数为N_c <N_F <3N_c,流夸克质量为m_Q \neq 0,夸克构成双夸克凝聚相.这意味着无色的手征夸克对在真空中相干凝聚,&lt;{\bar Q} Q&gt; \neq 0,而夸克单独不凝聚,== 0,因此颜色受到限制。<Q>< \bar Q>夸克的这种凝聚导致夸克的动力学组成质量μ_C \gg m_Q的形成和轻"π"的出现(类似于QCD)。在这一阶段的SQCD的质谱进行了描述和比较与Seiberg双描述。它表明,直接和对偶理论是不同的(除了,可能,微扰严格超共形制度)。

英文摘要:

The dynamical scenario is considered for N=1 SQCD, with N_c colors and N_c<N_F<3N_c flavors with small but nonzero current quark masses m_Q\neq 0, in which quarks form the diquark-condensate phase. This means that colorless chiral quark pairs condense coherently in the vacuum, <{\bar Q}Q>\neq 0, while quarks alone don't condense, <Q>=<\bar Q>=0, so that the color is confined. Such condensation of quarks results in formation of dynamical constituent masses μ_C \gg m_Q of quarks and appearance of light "pions" (similarly to QCD). The mass spectrum of SQCD in this phase is described and comparison with the Seiberg dual description is performed. It is shown that the direct and dual theories are different (except, possibly, for the perturbative strictly superconformal regime).

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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