Knowledge Resource Center for Ecological Environment in Arid Area
Ultra High Energy Cosmic Rays in the north: Some results from the High Resolution Fly's Eye | |
Matthews, J. N. | |
通讯作者 | Matthews, J. N. |
会议名称 | 2nd Conference on Colliders to Cosmic Rays |
会议日期 | FEB 25-MAR 01, 2007 |
会议地点 | Lake Tahoe, CA |
英文摘要 | The High Resolution Fly's Eye (HiRes) observatory collected Ultra High Energy Cosmic Ray (UHECR) data between 5/1997 and 4/2006. The experiment observed cosmic ray air showers via the air fluorescence technique and consisted of two observatory sites separated by 12.6 km in the western Utah desert. The two stations each measured the cosmic ray showers in monocular mode, however, the data from the two stations can also be combined to form a stereo measurement of the air showers. The experiment measures such properties as the energy spectrum, chemical composition, and p-air cross-section of these cosmic rays. It also searches for point sources and other anisotropy. The spectrum is measured above similar to 3 x 10(17) eV and shows significant structure including the "ankle" and a steep fall off which is consistent with the expectation of the GZK threshold. [1, 2] The spectrum is inconsistent with a continuing spectrum at the 5 sigma level. The composition is measured using the X-max technique. It was found to be predominantly light and unchanging above 10(18) eV. Finally, several different styles of searches for anisotropy in the data were performed. There are tantalizing hints including potential correlation with BL Lac objects and the "AGASA triplet", however these will need to be confirmed with an independent data set. Many members from HiRes have now joined a contingent from the old AGASA collaboration and the new group - The Telescope Array (TA) Project - will merge the techniques of its two predecessors. TA data collection begins mid-2007. |
英文关键词 | UHECR cosmic ray fluorescence GZK spectrum |
来源出版物 | C2CR07: Colliders to Cosmic Rays |
ISSN | 0094-243X |
出版年 | 2007 |
卷号 | 928 |
页码 | 47-54 |
ISBN | 978-0-7354-0438-0 |
出版者 | AMER INST PHYSICS |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | USA |
收录类别 | CPCI-S |
WOS记录号 | WOS:000250106600006 |
WOS关键词 | SPECTRUM ; SEARCH |
WOS类目 | Physics, Multidisciplinary ; Physics, Particles & Fields |
WOS研究方向 | Physics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/296408 |
作者单位 | (1)Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA |
推荐引用方式 GB/T 7714 | Matthews, J. N.. Ultra High Energy Cosmic Rays in the north: Some results from the High Resolution Fly's Eye[C]:AMER INST PHYSICS,2007:47-54. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Matthews, J. N.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Matthews, J. N.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Matthews, J. N.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。