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arXiv 0904.1970hep-ph
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Randall-Sundrum方案中的中微子质量、宇宙学常数和稳定宇宙

Neutrino masses, the cosmological constant and a stable universe in a Randall-Sundrum scenario

Paramita Dey, Biswarup Mukhopadhyaya, Soumitra SenGupta

摘要:

兰德尔-桑德拉姆模型的弯曲几何在一个五维场景中,旨在解释普朗克和电弱尺度之间的层次结构,本质上是不稳定的,由于其最小形式的可见膜的负张力。这个问题的一个建议的解决方案在四维空间中产生一个负的宇宙学常数。我们表明,这个错误的符号宇宙学常数被限制到小的值,因此需要较少的取消从迄今为止未知的物理,如果散装中微子被假定来解释所观察到的中微子质量模式。因此,中微子质量、稳定的Tev膜组态和宇宙学常数背景下的新物理学,就被同一条线紧密地联系在一起。

英文摘要:

The Randall-Sundrum model of warped geometry in a five-dimensional scenario, aimed at explaining the hierarchy between the Planck and electroweak scales, is intrinsically unstable in its minimal form due to negative tension of the visible brane. A proposed solution to the problem yields a negative cosmological constant in four dimensions. We show that this wrong-sign cosmological constant is restricted to small values, therefore requiring less cancellation from hitherto unknown physics, if bulk neutrinos are postulated to explain the observed neutrino mass pattern. Thus neutrino masses, a stable Tev-brane configuration and new physics in the context of the cosmological constant get rather suggestively connected by the same thread.

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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