论文标题
darvex的概念设计报告：静止$ν_e$ +铅横截面测量J-PARC MLF
Conceptual Design Report of DaRveX: Decay at Rest $ν_e$ + Lead Cross Section Measurement at J-PARC MLF
论文作者
论文摘要
darvex代表“休息$ν_e$ -pb Cross（x）部分测量”。到目前为止，还没有很好的目标来检测低能$ν_e$。预计铅将是一个极好的$ν_e$目标，因为预计横截面将非常大，并且可以使用最终状态中子（S）使用延迟的巧合技术。但是，尚未测量横截面。如果测量它，它将为未来的中微子研究领域打开一个新窗口，例如低能$ν_e$振荡测量，对超新星爆炸$ν_e$的特定检测以及对$ν_e$ nucleus互动的理解。本报告解释了Darvex实验的概念设计，该设计测量了$ν_e$+PB充电的当前互动，$ν_e$（e〜30mev）+pb $ \ to $ e^ - $ e^ - $+$+$ xn $+bi; （$ x $ = 1或2），使用$μ^+$ $ $ $ $^+$ $ $ $ $ = 1或2）在J-PARC MLF处静止。最终状态$ e^ - $的能量和方向将通过使用1吨量表铅质体夹心检测器来衡量。随着两年的数据获取，预计将以精度的20％进行测量横截面。
DaRveX stands for "Decay at Rest $ν_e$-Pb cross (X) section measurement". So far, there has not been good target to detect low energy $ν_e$. Lead is expected to be an excellent $ν_e$ target because the cross section is expected to be very large and the delayed coincidence technique can be used using final state neutron(s). However, the cross section have not been measured yet. If it is measured, it opens a new window to the future neutrino research field, such as low energy $ν_e$ oscillation measurements, flavor specific detection of the supernova explosion $ν_e$ and understanding of $ν_e$-nucleus interactions. This report explains a conceptual design of DaRveX experiment, which measures cross section of $ν_e$+Pb charged current interaction, $ν_e$(E~30MeV)+Pb $\to$ $e^-$+$xn$+Bi; ($x$=1 or 2), using $ν_e$ from $μ^+$ decay at rest at J-PARC MLF. The energy and direction of the final state $e^-$ will be measured by using 1-ton scale lead-scintillator sandwich detector. With two years of data taking, the cross section is expected to be measured with 20% of precision.
