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 1704.07151hep-phhep-exphysics.ins-det
收藏

我们能在3+1方案中测量$θ_{23}$八分圆吗?

Can we measure $θ_{23}$ octant in 3+1 scheme?

Sanjib Kumar Agarwalla, Sabya Sachi Chatterjee, Antonio Palazzo

摘要:

当前的3个$ν$全局拟合预测了$θ_{23}$的两个简并解:一个位于低八分圆($θ_{23} <π/4$),另一个属于高八分圆($θ_{23} >π/4$)。本文研究了在即将进行的深地中微子实验(DUNE)中,如果存在轻eV级的无菌中微子,对$θ_{23}$八分体测量的影响。我们证明了在3+1方案中,$ν_μ\to ν_e$振荡概率中的新干扰项可以完全破坏测量$θ_{23}$八分圆的机会。

英文摘要:

Current 3$ν$ global fits predict two degenerate solutions for $θ_{23}$: one lies in lower octant ($θ_{23} <π/4$), and the other belongs to higher octant ($θ_{23} >π/4$). Here, we study how the measurement of $θ_{23}$ octant would be affected in the upcoming Deep Underground Neutrino Experiment (DUNE) if there exist a light eV-scale sterile neutrino. We show that in 3+1 scheme, a new interference term in $ν_μ\to ν_e$ oscillation probability can spoil the chances of measuring $θ_{23}$ octant completely.

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。

↑