arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1302.0624hep-phhep-ex
收藏

从Nuclear Reactor实验得到的中微子质量谱

The Neutrino Mass Hierarchy from Nuclear Reactor Experiments

Emilio Ciuffoli, Jarah Evslin, Xinmin Zhang

摘要:

10年后,反应堆中微子实验将试图确定哪种中微子质量本征态是最大的。在这封信中,我们提出了超过700万个详细的模拟实验的结果,研究成功确定质量等级的概率依赖于分析方法,中微子质量矩阵参数,反应堆通量模型,地中微子,特别是基线的组合。我们表明,最近报道的虚假依赖的数据分析后,反应堆光谱的高能量尾部,可以通过使用加权傅立叶变换。我们确定最佳基线和相应的检测器位置。对于CP破坏的轻子狄拉克相δ的大多数值,简并阻止NOvA和T2K确定δ或层次。我们确定的信心,反应堆实验可以确定的层次结构,打破简并。

英文摘要:

10 years from now reactor neutrino experiments will attempt to determine which neutrino mass eigenstate is the most massive. In this letter we present the results of more than seven million detailed simulations of such experiments, studying the dependence of the probability of successfully determining the mass hierarchy upon the analysis method, the neutrino mass matrix parameters, reactor flux models, geoneutrinos and, in particular, combinations of baselines. We show that a recently reported spurious dependence of the data analysis upon the high energy tail of the reactor spectrum can be removed by using a weighted Fourier transform. We determine the optimal baselines and corresponding detector locations. For most values of the CP-violating, leptonic Dirac phase delta, a degeneracy prevents NOvA and T2K from determining either delta or the hierarchy. We determine the confidence with which a reactor experiment can determine the hierarchy, breaking the degeneracy.

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。

↑