Teacher:In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Teacher: Now, understand the problem? Solve this instance: It is unknown whether they are Majorana particles, and therefore it is unclear if they are released in double beta decays. They were recently used in an article in Nature to investigate the uranium and thorium content of the inner Earth. Found to oscillate between their different varieties by experiments conducted in Japanese mines, they were shown to not be massive enough to account for dark matter. However, the KamLAND and Super-Kamiokande experiments did show that, contrary to long-held suspicions, they do have mass. FTP, name these uncharged leptons that come in electron, muon, and tau varieties.
Student:
Science