arXiv 0904.18492009-04-12hep-phhep-th

无基本标量的标准模型和高能洛伦兹破坏

Standard Model Without Elementary Scalars And High Energy Lorentz Violation

Damiano Anselmi

备注：: 26 pages
发表信息：: Eur.Phys.J.C65:523-536,2010
DOI：: 10.1140/epjc/s10052-009-1211-z

摘要：

如果洛伦兹对称性在高能量下被破坏，通常不可重正化的相互作用可以通过加权功率计数变得可重正化。最近，一个CPT不变的，洛伦兹破坏的标准模型的扩展，包含两个标量2费米子相互作用（可以解释中微子质量）和四个费米子相互作用（可以解释质子衰变）的建议。在本文中，我们考虑一个变种的这个模型，得到抑制基本标量场，并认为它可以重现已知的低能物理。在Nambu-Jona-Lasinio精神下，我们用大N_c展开证明了动力学对称破缺的发生。有效势有一个洛仑兹不变的最小值，洛仑兹破坏不会影响到低能量。该机制产生了费米子质量、规范玻色子质量和标量束缚态，它们与复合希格斯玻色子玻色子等同。我们的方法是不困扰的模糊性的方法的基础上不可重正化顶点。低能有效作用量是唯一确定的，并预测了标准模型参数之间的关系。

英文摘要：

If Lorentz symmetry is violated at high energies, interactions that are usually non-renormalizable can become renormalizable by weighted power counting. Recently, a CPT invariant, Lorentz violating extension of the Standard Model containing two scalar-two fermion interactions (which can explain neutrino masses) and four fermion interactions (which can explain proton decay) was proposed. In this paper we consider a variant of this model, obtained suppressing the elementary scalar fields, and argue that it can reproduce the known low energy physics. In the Nambu--Jona-Lasinio spirit, we show, using a large N_c expansion, that a dynamical symmetry breaking takes place. The effective potential has a Lorentz invariant minimum and the Lorentz violation does not reverberate down to low energies. The mechanism generates fermion masses, gauge-boson masses and scalar bound states, to be identified with composite Higgs bosons. Our approach is not plagued by the ambiguities of approaches based on non-renormalizable vertices. The low-energy effective action is uniquely determined and predicts relations among parameters of the Standard Model.

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。

摘要：

英文摘要：

相关论文