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arXiv 1003.5554hep-ph
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T2KK对传播中非标准相互作用的敏感性

Sensitivity of T2KK to the non-standard interaction in propagation

Haruna Oki, Osamu Yasuda

备注：
29 pages, 25 figures, uses revtex4-1. Several places including typos revised. New references added
发表信息：
Phys.Rev.D82:073009,2010
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摘要：

在只考虑非标准物质效应的非零电子和τ中微子分量$ε_{ee}$、$ε_{eτ}$、$ε_{ττ}$的情况下，假定大气中微子约束$ε_{ττ}=|ε_{eτ}|^2/(1+ε_{ee})$，研究了T2 KK中微子长基线实验中中微子传播对非标准相互作用的敏感性.结果表明，T2 KK可以约束参数$|ε_{ee}|\lesssim 1$，$|ε_{eτ}|\lesssim 0.2$ .当$|ε_{eτ}|$和$θ_{13}$较大时，T2 KK可以利用两个基线的信息分别确定狄拉克相位和$ε_{eτ}$的相位.我们还提供了一个论点，$|ε_{αμ}|$ $(α=e,μ,τ)$的组件必须是小的消失振荡概率是一致的高能大气中微子数据，这证明了我们的前提，这些量是可以忽略不计的。

英文摘要：

Assuming only the non-zero electron and tau neutrino components $ε_{ee}$, $ε_{eτ}$, $ε_{ττ}$ of the non-standard matter effect and postulating the atmospheric neutrino constraint $ε_{ττ}=|ε_{eτ}|^2/(1+ε_{ee})$, we study the sensitivity to the non-standard interaction in neutrino propagation of the T2KK neutrino long-baseline experiment. It is shown that T2KK can constrain the parameters $|ε_{ee}|\lesssim 1$, $|ε_{eτ}|\lesssim 0.2$. It is also shown that if $|ε_{eτ}|$ and $θ_{13}$ are large, then T2KK can determine the Dirac phase and the phase of $ε_{eτ}$ separately, due to the information at the two baselines. We also provide an argument that the components $|ε_{αμ}|$ $(α=e,μ,τ)$ must be small for the disappearance oscillation probability to be consistent with high-energy atmospheric neutrino data, which justifies our premise that these quantities are negligible.

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