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 2107.12410hep-phhep-ex
收藏

JUNO对确定中微子质量序的展望

JUNO's prospects for determining the neutrino mass ordering

David V. Forero, Stephen J. Parke, Christoph A. Ternes, Renata Zukanovich Funchal

摘要:

JUNO实验的旗舰测量是确定中微子质量排序。在这里,我们重新审视其前景,使这一决定,到2030年,使用目前的全球知识的相关中微子参数,以及目前的信息,反应堆配置和关键参数的JUNO探测器。我们特别注意非线性探测器的能量响应。利用大亚湾$θ_{13}$的测量结果,在没有其他实验信息的情况下,我们估计到2030年JUNO确定中微子质量有序度为$\ge$ 3 $σ$的概率为31%.由于这种概率对振荡参数的真实值特别敏感,特别是$Δm^2_{21}$,JUNO对$\sin^2 θ_{12}$,$Δm^2_{21}$和$|Δm^2_{ee}|$的改进测量,经过几年的运行,将允许对JUNO单独可以在十年末确定中微子质量排序的概率进行更新估计。将JUNO对$|Δm^2_{ee}|$的测量与其他实验结合在一起,很可能会导致更早地确定质量排序。

英文摘要:

The flagship measurement of the JUNO experiment is the determination of the neutrino mass ordering. Here we revisit its prospects to make this determination by 2030, using the current global knowledge of the relevant neutrino parameters as well as current information on the reactor configuration and the critical parameters of the JUNO detector. We pay particular attention to the non-linear detector energy response. Using the measurement of $θ_{13}$ from Daya Bay, but without information from other experiments, we estimate the probability of JUNO determining the neutrino mass ordering at $\ge$ 3$σ$ to be 31% by 2030. As this probability is particularly sensitive to the true values of the oscillation parameters, especially $Δm^2_{21}$, JUNO's improved measurements of $\sin^2 θ_{12}$, $Δm^2_{21}$ and $|Δm^2_{ee}|$, obtained after a couple of years of operation, will allow an updated estimate of the probability that JUNO alone can determine the neutrino mass ordering by the end of the decade. Combining JUNO's measurement of $|Δm^2_{ee}|$ with other experiments in a global fit will most likely lead to an earlier determination of the mass ordering.

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。

↑