论文标题
中微性中微子横截面和预期的$^{40} $ ar的超新星信号从磁性偶极强度增加三倍
Neutral-current neutrino cross section and expected supernova signals for $^{40}$Ar from a three-fold increase in the magnetic dipole strength
论文作者
论文摘要
鉴于对液体Argon Neutrino探测器的极大兴趣,$^{40} $ ar($γ,γ'$)$^{40} $^{40} $ ar $^{*} $反应被重新探讨以指导Supernova Energies的中性当前中微子横截面的计算。使用核共振荧光技术,使用单必须线性极化光子束99%,我们报告的磁偶极强度在$^{40} $ ar的10 meV左右增加了三倍。基于壳模型的计算,并使用实验鉴定的过渡,计算了$^{40} $ ar的低能反应的中微子中微子横截面。
In view of the great interest in liquid argon neutrino detectors, the $^{40}$Ar($γ,γ'$)$^{40}$Ar$^{*}$ reaction was revisited to guide a calculation of the neutral current neutrino cross section at supernova energies. Using the nuclear resonance fluorescence technique with a monoenergetic, 99% linearly polarized photon beam, we report a three-fold increase in magnetic dipole strength at around 10 MeV in $^{40}$Ar. Based on shell-model calculations, and using the experimentally identified transitions, the neutral current neutrino cross sections for low-energy reactions on $^{40}$Ar are calculated.