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arXiv 0910.0679hep-phnucl-th
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稠密强子物质的伸缩子

Dilatons for Dense Hadronic Matter

Hyun Kyu Lee, Mannque Rho

摘要:

QCD的迹异常对标度不变性的显式破缺可以被重新表述为自发破缺的想法最近被用来在隐藏的局域规范对称性框架下,用“软”场(chi_s)和“硬”场(chi_h)来描述致密(也是热)物质的低能强相互作用动力学。在Freund-Nambu模型中,标度对称性的自发对称性破缺是由显破缺项引起的,而在标度对称的平势模型中,自发对称性破缺是可能的.我们讨论的软和硬的介子的相互作用,使用自发破缺标度对称计划,并揭示了一种新的结构,迄今尚未探索的致密物质。

英文摘要:

The idea that the explicit breaking of scale invariance by the trace anomaly of QCD can be rephrased as a spontaneous breaking has been recently exploited to capture the low-energy strong interaction dynamics of dense (and also hot) matter in terms of two dilaton fields, the "soft" (chi_s) and the "hard" (chi_h) fields, in the frame work of the hidden local gauge symmetry. In the Freund-Nambu model, the spontaneous symmetry breaking of scale symmetry is induced by an explicitly breaking term, while the spontaneous symmetry breaking is possible in the flat potential model which is scale symmetric. We discuss the interplay of the soft and hard dilatons using the spontaneously broken scale symmetry schemes and uncover a novel structure of dense matter hitherto unexplored.

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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