论文标题
暗物质衰减的仿射引力场景
Affine gravitational scenario for dark matter decay
论文作者
论文摘要
由于目前仅通过其重力影响才能揭示其存在的证据，因此，深色物质夫妇的重力必须是最重要的。在这里，与通常耦合到度量的标准模型行业不同，暗物质应该仅通过$ z_2 $ - 米对称性破坏术语来融为时空仿射连接。我们表明，这种结构导致暗物质之间的耦合，这被认为是标量和标准模型希格斯的潜力。这会通过希格斯（Higgs）诱导暗物质进入标准模型颗粒，该模型粒子充当可见扇区和黑暗扇区之间的门户。我们对各种质量范围的产生衰减模式进行了详尽的研究，并在非微小耦合上提供了与观察数据一致的仿射重力的相关界限。此外，我们发现与希格斯的耦合可能足够大，可以在当前和未来的高能量船上促进比10 GEV的暗物质生产。
Since the current evidence of its existence is revealed only through its gravitational influence, the way dark matter couples to gravity must be then of primary importance. Here, unlike the standard model sector which is typically coupled to metric, dark matter is supposed to couple only to spacetime affine connection through a $Z_2$-symmetry breaking term. We show that this structure leads to a coupling between dark matter, which is considered scalar, and the standard model Higgs potential. This induces dark matter decays into standard model particles through the Higgs which acts as a portal between the visible and the dark sectors. We study thoroughly the resulting decay modes for various mass ranges, and provide relevant bounds on the nonminimal coupling to affine gravity in line with observational data. Moreover, we find that the coupling to Higgs can be sufficiently large to facilitate production of dark matter lighter than 10 GeV at current and future high energy colliders.
