论文标题
超新星中微子通过核通过中子发射检测
Supernova neutrino detection through neutron emission by nuclei
论文作者
论文摘要
核心塌陷超新星的中微子可以激发某些检测器材料的核，超出其中子发射阈值。这些中子的检测可以提供有关超新星爆炸机制的有价值的信息，并且可能还阐明了中微子的特性。在本文中，我们对中微子诱发的中子中微子排放的基本物理学进行了简要综述，并描述了由于电子调味性中微子和抗红细胞的相互作用（NC）相互作用（NC）相互作用（NC）相互作用（NC）相互作用（nc）相互作用的某些特定目标探测器相互作用而导致的某些特定目标探测器材料的一些最新计算结果核。我们强调了一个事实，即探测器材料（例如中子过量多余的铅）通过$ν_e$ s的CC相互作用主要产生中子，而诸如具有小中子过量的铁等材料通过所有六个中微子和抗毒剂和抗毒剂的组合相互作用占主要中子中子。这增加了有趣的可能性，即通过同时检测铅中的超新星和铁探测器的同时检测超新星中微子通量在超新星中微子通量中探测Mu-和tau味中微子的分数（仅通过NC相互作用相互作用）。
Neutrinos from core collapse supernovae can excite nuclei of some detector materials beyond their neutron emission thresholds. Detection of these neutrons can give valuable information about the supernova explosion mechanism and possibly also throw light on neutrino properties. In this article, we give a brief review of the basic physics of neutrino induced neutron emission and describe the results of some recent calculations of supernova neutrino induced neutrons for some specific target detector materials due to charged current (CC) interactions of the electron flavored neutrinos and antineutrinos as well as due to neutral current (NC) interactions of neutrinos and antineutrinos of all flavors with the detector nuclei. We highlight the fact that a detector material such as lead with a relatively large neutron excess produces neutrons dominantly through the CC interaction of the $ν_e$s, whereas a material such as iron with small neutron excess produces neutrons dominantly through the combined NC interaction of all the six neutrino and antineutrino species. This raises the interesting possibility of probing the fraction of mu- and tau flavored neutrinos (which interact only through NC interaction) in the supernova neutrino flux by means of simultaneous detection of a supernova in a lead and an iron detector, for example.
