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arXiv 1401.5301hep-phastro-ph.CO
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引力介导的(或复合的)暗物质与天体物理学数据的对抗

Gravity-mediated (or Composite) Dark Matter Confronts Astrophysical Data

Hyun Min Lee, Myeonghun Park, Veronica Sanz

摘要:

我们认为天体物理界的一种新形式的暗物质,所谓的引力介导的暗物质。在这种情况下,暗物质通过引力共振组成的中介扇区与我们通信,即新标量(radion)和大质量自旋2共振(massive graviton)。我们考虑特定的模型自然电弱对称性破缺或弱尺度暗物质的背景下,在扭曲的额外的维度和他们的复合材料的模型。主要的暗物质湮灭机制是由于KK引力子与大量传播的规范玻色子的相互作用。我们强加的限制单色或连续光子从费米LAT和HESS。我们还探讨了费米伽马射线线可能是引力介导的暗物质的表现的情况。

英文摘要:

We consider the astrophysical bounds on a new form of dark matter, the so called Gravity-mediated Dark Matter. In this scenario, dark matter communicates with us through a mediator sector composed of gravitational resonances, namely a new scalar (radion) and a massive spin-two resonance (massive graviton). We consider specific models motivated by natural electroweak symmetry breaking or weak-scale dark matter in the context of models in warped extra-dimensions and their composite duals. The main Dark Matter annihilation mechanism is due to the interactions of KK gravitons to gauge bosons that propagate in bulk. We impose the bounds on monochromatic or continuum photons from Fermi-LAT and HESS. We also explore scenarios in which the Fermi gamma-ray line could be a manifestation of Gravity-mediated Dark Matter.

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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