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arXiv 0905.3749hep-phastro-ph.COhep-th
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来自隐藏区的宇宙信号

Cosmic Signals from the Hidden Sector

Jeremy Mardon, Yasunori Nomura, Jesse Thaler

摘要:

宇宙学上的长寿命复合态在理论上是自然的暗物质候选者,在10 - 100 TeV的尺度上有一个强相互作用的隐藏扇区。质量在1 MeV - 10 GeV范围内的轻轴子态也是通用的,并且可以通过希格斯耦合衰变为轻标准模型粒子。这样一个场景在非常低能量的超对称性破缺的背景下是很好的动机,在那里与引力子相关的无处不在的宇宙学问题被避免了。我们调查了这种情况下的天体物理和对撞机签名,假设暗物质通过六维运营商衰变到轴子样状态,我们提出了一个说明性的模型展示这些功能。我们得出结论,PAMELA,FERMI和H.E.S.S.指出这种设置是暗物质令人信服的范例。这对未来的漫射伽马射线测量和对撞机搜索具有重要意义。

英文摘要:

Cosmologically long-lived, composite states arise as natural dark matter candidates in theories with a strongly interacting hidden sector at a scale of 10 - 100 TeV. Light axion-like states, with masses in the 1 MeV - 10 GeV range, are also generic, and can decay via Higgs couplings to light standard model particles. Such a scenario is well motivated in the context of very low energy supersymmetry breaking, where ubiquitous cosmological problems associated with the gravitino are avoided. We investigate the astrophysical and collider signatures of this scenario, assuming that dark matter decays into the axion-like states via dimension six operators, and we present an illustrative model exhibiting these features. We conclude that the recent data from PAMELA, FERMI, and H.E.S.S. points to this setup as a compelling paradigm for dark matter. This has important implications for future diffuse gamma ray measurements and collider searches.

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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