arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.5481hep-phastro-ph.COastro-ph.HE
收藏

来自暗物质的Gamma Ray信号:概念、现状与展望

Gamma Ray Signals from Dark Matter: Concepts, Status and Prospects

Torsten Bringmann, Christoph Weniger

摘要:

弱相互作用大质量粒子(WIMP)仍然是宇宙学暗物质(DM)的主要候选者,即使在没有当前对撞机信号的情况下,也会明确地指向TeV尺度以下的新物理。这些粒子在天文目标中的自我湮灭可能会在各种宇宙射线中留下可观测到的印记。在这篇评论中,我们专注于伽马射线,我们认为在各种可能的信使中发挥了明显的作用。我们讨论了最有前途的光谱和空间签名寻找,给出了一个更新的伽马射线搜索DM的当前状态和展望未来的前景。我们还评估了一些细节的影响,一个潜在的信号识别粒子DM模型,以及我们的理解结构的形成。特别强调的是把一个130 GeV的线状信号,最近确定的费米伽马射线空间望远镜的数据的可能的证据。

英文摘要:

Weakly interacting massive particles (WIMPs) remain a prime candidate for the cosmological dark matter (DM), even in the absence of current collider signals that would unambiguously point to new physics below the TeV scale. The self-annihilation of these particles in astronomical targets may leave observable imprints in cosmic rays of various kinds. In this review, we focus on gamma rays which we argue to play a pronounced role among the various possible messengers. We discuss the most promising spectral and spatial signatures to look for, give an update on the current state of gamma-ray searches for DM and an outlook concerning future prospects. We also assess in some detail the implications of a potential signal identification for particle DM models as well as for our understanding of structure formation. Special emphasis is put on the possible evidence for a 130 GeV line-like signal that was recently identified in the data of the Fermi gamma-ray space telescope.

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。

↑