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arXiv 1106.3074hep-phhep-th
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MSSM的Seiberg对偶:部分复合W和Z

A Seiberg Dual for the MSSM: Partially Composite W and Z

Csaba Csaki, Yuri Shirman, John Terning

摘要:

我们研究了标准模型的SU(2)规范群作为超对称规范理论的对偶“磁”规范群出现的可能性,因此W和Z(以及通过混合的光子)是复合的(或部分复合的)规范玻色子。完全复合的规范玻色子在对偶标度上会有很强的相互作用,并且需要很大的运行来匹配电弱规范耦合。或者,人们可以将复合“磁性”规范玻色子与一些基本玻色子混合,以获得真实的模型。在最简单和最引人注目的例子中,希格斯粒子和托普粒子是复合粒子,W粒子和Z粒子是部分复合粒子,而轻费米子是基本粒子。有效理论是一个NMSSM型模型,其中单重态是复合介子的一个组成部分。希格斯粒子的质量可以大到400 GeV,这并不是一个小的等级问题。这种类似“胖希格斯”的模型可以被认为是大量具有规范场的RS型模型的显式4D实现。

英文摘要:

We examine the possibility that the SU(2) gauge group of the standard model appears as the dual "magnetic" gauge group of a supersymmetric gauge theory, thus the W and Z (and through mixing, the photon) are composite (or partially composite) gauge bosons. Fully composite gauge bosons are expected to interact strongly at the duality scale, and a large running is needed to match the electroweak gauge couplings. Alternatively one can mix the composite "magnetic" gauge bosons with some elementary ones to obtain realistic models. In the simplest and most compelling example the Higgs and top are composite, the W and Z partially composite and the light fermions elementary. The effective theory is an NMSSM-type model where the singlet is a component of the composite meson. There is no little hierarchy problem and the Higgs mass can be as large as 400 GeV. This "fat Higgs"-like model can be considered as an explicit 4D implementation of RS-type models with gauge fields in the bulk.

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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