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arXiv 0712.0505hep-ph
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通往寒冷暗物质的无菌世界的光子门户

Photonic portal to the sterile world of cold dark matter

Wojciech Krolikowski

摘要:

我们假设冷暗物质由自旋为1/2和自旋为0的粒子组成,由双旋量场和标量场描述,与所有标准模型电荷无关(相反,中性伴子,冷暗物质的超对称候选者,并非与弱标准模型电荷无关)。然而,我们提出,这样一个无菌世界不仅可以通过引力与我们的标准模型世界接触,而且还可以通过光子与无菌粒子耦合提供的门户,通过两个非常弱的有效相互作用-(f/M^2)<$F^{μν}<F_{μν}和-(f '/M^2)(\bar <$σ^{μν}<$)<$F_{μν},其中M是非常大的质量尺度,f和f'是无量纲耦合常数。因此,在我们的图像中,电磁场F_{μν} --作为唯一的标准模型场--参与了两个世界,在它们之间提供了一种非引力的联系(除了流行的超对称弱相互作用,在中性伴子的情况下是活跃的)。因此,出现了一个微小的准磁校正的常规电磁电流(在附录A中描述)。

英文摘要:

We assume that the cold dark matter consists of spin-1/2 and spin-0 particles described by a bispinor field ψand a scalar field ϕ, sterile from all Standard Model charges (in contrast, neutralinos, supersymmetric candidates for cold dark matter, are not sterile from weak Standard Model charges). We propose, however, that such a sterile world can contact with our Standard Model world not only through gravity but also through a portal provided by photons coupled to sterile particles by means of two very weak effective interactions -(f/M^2)ϕF^{μν}ϕF_{μν} and -(f'/M^2) (\barψσ^{μν} ψ)ϕF_{μν}, where M is a very large mass scale and f and f' are dimensionless coupling constants. Thus, in our picture, the electromagnetic field F_{μν} - as the only Standard Model field - participates in both worlds, providing a nongravitational link between them (other than the popular supersymmetric weak interaction, active in the case of neutralinos). In consequence, there appears a tiny quasi-magnetic correction to the conventional electromagnetic current (described in Appendix A).

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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