Dissertation Enhancement: Particle Astrophysics at the Super-Kamiokande Neutrino Observatory

9724751威尔克斯该奖项支持由日本东京宇宙线研究所(ICRR)在日本墨水的超级神冈中微子天文台为R.J.威尔克斯博士颁发的为期6个月的国家科学基金会论文增强奖。威尔克斯博士的学生罗斯·多伊尔先生将与ICRR主任户津洋二教授合作，开展一项名为《用超级神冈观测大气中微子》的研究项目。过去二十年来进行的实验证据一直表明，观测到的来自太阳的电子中微子的数量与预期的数量之间存在差异。像Homestake，SAGE，Kamiokande II和GALLEX这样的实验都报告了比标准模型预测的更少的电子中微子。由于还没有开发出既能充分预测观测到的中微子水平，又能解释太阳的所有其他观测特征的太阳模型，中微子振荡的可能性被用来解释一种物种的测量赤字。这项拟议的研究旨在确定这些中微子振荡是否真的发生，如果确实发生，则比以前完成的更精确地测量太阳电子中微子通量。***

9724751 Wilkes This award supports a 6 month National Science Foundation Dissertation Enhancement Award for Dr. R. J. Wilkes at the Super-Kamiokande Neutrino Observatory, Mozumi, Japan, operated by the Institute for Cosmic Ray Research (ICRR), Tokyo, Japan. Dr. Wilkes's student, Mr. Ross Doyle, will work with Professor Yoji Totsuka, Director of ICRR, on a research project entitled "Atmospheric Neutrino Observations with Super-Kamiokande". Evidence from experiments conducted over the last two decades consistently suggests there is a discrepancy between the number of electron neutrinos observed coming from the sun and the number that might be expected. Experiments such as Homestake, SAGE, Kamiokande II, and GALLEX have all reported fewer electron neutrinos than standard models predict. Because no solar models have yet been developed that are adequately able to both predict the observed level of neutrinos and yet account for all the other observed features of the sun, the possibility of neutrino oscillations has been invoked as an explanation for the measured deficit of one species. The proposed research is designed to determine whether these neutrino oscillations actually occur and, if so, measure the solar electron neutrino flux with greater accuracy than has been accomplished previously. ***