arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.01254hep-ph
收藏

通过$CP$相位的精确测量揭示Majorana性质

Uncovering Majorana nature through a precision measurement of $CP$ phase

J. C. Carrasco-Martínez, F. N. Díaz, A. M. Gago

摘要:

通过测量DUNE实验中的Majorana CP相位,我们发现了发现中微子本质的可能性。这个阶段是由退相干环境开启的,可能是由普朗克尺度的物理学引起的。与T2 HK测量相比,DUNE观测到的狄拉克CP破坏相位$δ_{\mathrm{CP}}$的测量存在相当大的失真,这是由于退相干和非零的马约拉纳相位。因此,当在DUNE处执行马约拉纳相位的测量时,对于退相干参数$Γ=4.5(5.5)\times 10^{-24} \mathrm{GeV}$和等于$1.5 π$的马约拉纳相位,其达到23(21)$\%$的精度。后者的精度类似于在T2K实验中在其当前狄拉克CP破坏相位测量中获得的精度。

英文摘要:

We show the possibility to discover the neutrino nature by measuring the Majorana CP phase at the DUNE experiment. This phase is turned on by a decoherence environment, possibly originated by physics at the Planck scale. A sizable distortion in the measurement of the Dirac CP violation phase $δ_{\mathrm{CP}}$ is observed at DUNE when compared with T2HK measurement due to decoherence and non-null Majorana phase. Being that, when the measurement of the Majorana phase is performed at DUNE, it reaches a precision of 23 (21) $\%$ for a decoherence parameter $Γ=4.5(5.5)\times 10^{-24} \mathrm{GeV}$ and a Majorana phase equal to $1.5 π$. The latter precision is similar to the one obtained at the T2K experiment at its current Dirac CP violation phase measurement.

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。

↑