论文标题
达尔文通过电子散射中的太阳中微子检测灵敏度
Solar Neutrino Detection Sensitivity in DARWIN via Electron Scattering
论文作者
论文摘要
我们通过弹性电子散射详细介绍了液体氙（LXE）Darwin天文台对太阳中微子的灵敏度。我们发现，达尔文有可能测量五个太阳中微子组件的通量：$ pp $，$^7 $ be，$^{13} $ n，$^{15} $ o和$ pep $。 $^{13} $ n，$^{15} $ o和$ pep $组件的精度受到$^{136} $ xe的双β衰变的阻碍，因此将受益于枯竭的目标。对$ pp $中微子的高统计观察将使我们能够推断出弱混合角，$ \ sin^2θ_w$的值以及电子型中微子的存活率，$ p_e $，$ p_e $，是从几个kev到200 keV的第一个kev，相对于5％和4％的曝光，在几个kev中，在几个keV中，相应地相应地占有5％和4％的曝光。 $ pp $和$^7 $的观察中微子会将中微子提交的太阳能发光降低到0.2％。所有通量测量值的组合将区分高（GS98）和低金属性（AGS09）太阳能模型，具有2.1-2.5 $σ$的意义，与其他实验的外部测量无关，或通过$^8 $ b Neutrinos通过在darwin中的相干弹性弹性中性含量进行的。最后，我们证明，使用耗尽的目标，达尔文可能对$^{131} $ Xe的中微子捕获过程敏感。
We detail the sensitivity of the liquid xenon (LXe) DARWIN observatory to solar neutrinos via elastic electron scattering. We find that DARWIN will have the potential to measure the fluxes of five solar neutrino components: $pp$, $^7$Be, $^{13}$N, $^{15}$O and $pep$. The precision of the $^{13}$N, $^{15}$O and $pep$ components is hindered by the double-beta decay of $^{136}$Xe and, thus, would benefit from a depleted target. A high-statistics observation of $pp$ neutrinos would allow us to infer the values of the weak mixing angle, $\sin^2θ_w$, and the electron-type neutrino survival probability, $P_e$, in the electron recoil energy region from a few keV up to 200 keV for the first time, with relative precision of 5% and 4%, respectively, at an exposure of 300 ty. An observation of $pp$ and $^7$Be neutrinos would constrain the neutrino-inferred solar luminosity down to 0.2%. A combination of all flux measurements would distinguish between the high (GS98) and low metallicity (AGS09) solar models with 2.1-2.5$σ$ significance, independent of external measurements from other experiments or a measurement of $^8$B neutrinos through coherent elastic neutrino-nucleus scattering in DARWIN. Finally, we demonstrate that with a depleted target DARWIN may be sensitive to the neutrino capture process of $^{131}$Xe.
