Dark energy and neutrino CPT-violation

Dark energy and neutrino CPT-violation
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DOI:
10.1140/epjc/s10052-007-0217-7
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发表时间:
2005-11
期刊:
The European Physical Journal C
影响因子:
--
通讯作者:
Peihong Gu;X. Bi;Xinmin Zhang
Peihong Gu;X. Bi;Xinmin Zhang
中科院分区:
其他
文献类型:
--
作者:
Peihong Gu;X. Bi;Xinmin Zhang

文献摘要

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在这篇文章中,我们研究了宇宙暗能量引起的中微子扇区的动力学CPT破坏。具体地说,我们考虑了一个暗能量模型,在这个模型中,暗能量标量与右手中微子发生导数相互作用。在暗能量背景场的演化过程中,这种导数耦合导致了宇宙的CPT破坏。我们计算了左手中微子的诱导CPT破坏,发现这种方法产生的CPT破坏与目前的实验极限是一致的,并且对未来的中微子振荡实验如中微子工厂是敏感的。
In this paper we study dynamical CPT-violation in the neutrino sector as induced by the dark energy of the universe. Specifically we consider a dark energy model where the dark energy scalar derivatively interacts with the right-handed neutrinos. This type of derivative coupling leads to cosmological CPT-violation during the evolution of the background field of the dark energy. We calculate the induced CPT-violation of left-handed neutrinos and find that the CPT-violation produced in this way is consistent with the present experimental limit and sensitive to future neutrino oscillation experiments such as the neutrino factory.