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arXiv 0705.3636hep-phastro-ph
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用宇宙学和天体物理学约束非粒子物理

Constraining Unparticle Physics with Cosmology and Astrophysics

Hooman Davoudiasl

摘要:

最近有人提出,具有非平凡红外固定点的尺度不变的“非粒子”扇区可以通过高维算子耦合到标准模型(SM)。这种相互作用的弱点隐藏了低能量下的非粒子现象。我们展示了如何宇宙学和天体物理学可以把非粒子SM相互作用的强度显着的界限。我们还讨论了今天有一个不可忽略的非粒子遗迹密度的可能性。

英文摘要:

It has recently been suggested that a scale invariant "unparticle" sector with a non-trivial infrared fixed point may couple to the Standard Model (SM) via higher dimensional operators. The weakness of such interactions hides the the unparticle phenomena at low energies. We demonstrate how cosmology and astrophysics can place significant bounds on the strength of unparticle-SM interactions. We also discuss the possibility of a having a non-negligible unparticle relic density today.

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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