Research in Ultrahigh Energy Cosmic Ray Physics

该奖项将资助该小组利用高分辨率苍蝇眼（HiRes）和望远镜阵列合作研究超高能宇宙射线。对宇宙射线的研究在物理学和天体物理学的几个领域都有学术上的影响。超高能宇宙射线是宇宙中能量最高的粒子，在最剧烈的天体中加速。HiRes协作已经进行了几项重要的测量，该小组发挥了重要作用。望远镜阵列是北半球最大的宇宙射线实验。这是一项混合实验，从2008年初开始收集数据。该小组参与了表面检测器（SD）和荧光检测器（FD）数据的分析。他们领导了SD工作的合作，开发了一种新的SD分析方法，并计算了来自SD的宇宙射线的光谱。他们的FD分析集中在位于实验南部的两个荧光探测器上。他们正在进行FD分析的第一步：单目重建，然后是混合重建。该研究的更广泛影响包括学生和博士后的教育，该小组将加入Aspire Outreach活动。

This award will fund the group to study ultrahigh energy cosmic rays with the High Resolution Fly's Eye (HiRes) and Telescope Array collaborations. The study of cosmic rays has intellectual impact in several areas of physics and astrophysics. Ultrahigh energy cosmic rays are the highest energy particles in the universe, and are accelerated in the most violent astronomical objects. The HiRes collaboration has made several important measurements, with this group playing an important part. The Telescope Array is the largest cosmic ray experiment in the northern hemisphere. It is a hybrid experiment and has been collecting data since early 2008. The group is involved in the analysis of both surface detector (SD) and fluorescence detector (FD) data. They lead the collaboration in the SD work, developing a new method of SD analysis, and have calculated the spectrum of cosmic rays from the SD. Their FD analysis centers on the two fluorescence detectors located in the southern portion of the experiment. They are making the first steps in FD analysis: monocular reconstruction, followed by hybrid reconstruction. The broader impacts of the research include the education of students and postdocs and the group will join the Aspire Outreach activity.