Moon shadow by cosmic rays under the influence of geomagnetic field and search for antiprotons at multi-TeV energies
Tibet ASγ Collaboration
刊名ASTROPARTICLE PHYSICS
2007
卷号28期号:1页码:#REF!
关键词cosmic rays air shower anti-matter observation and data analysis simulations
学科分类Astronomy & Astrophysics; Physics
DOI10.1016/j.astropartphys.2007.05.002
通讯作者Hibino, K (reprint author), Kanagawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan.
文章类型Article
英文摘要We have observed the shadowing of galactic cosmic ray flux in the direction of the moon, the so-called moon shadow, using the Tibet-III air shower array operating at Yangbajing (4300 in a.s.l.) in Tibet since 1999. Almost all cosmic rays are positively charged; for that reason, they are bent by the geomagnetic field, thereby shifting the moon shadow westward. The cosmic rays will also produce an additional shadow in the eastward direction of the moon if cosmic rays contain negatively charged particles, such as antiprotons, with some fraction. We selected 1.5 x 10(10) air shower events with energy beyond about 3 TeV from the dataset observed by the Tibet-III air shower array and detected the moon shadow at similar to 40 sigma level. The center of the moon was detected in the direction away from the apparent center of the moon by 0.23 degrees to the west. Based on these data and a full Monte Carlo simulation, we searched for the existence of the shadow produced by antiprotons at the multi-TeV energy region. No evidence of the existence of antiprotons was found in this energy region. We obtained the 90% confidence level upper limit of the flux ratio of antiprotons to protons as 7% at multi-TeV energies. (C) 2007 Elsevier B.V. All rights reserved.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000250355200012
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226417
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
推荐引用方式
GB/T 7714
Tibet ASγ Collaboration. Moon shadow by cosmic rays under the influence of geomagnetic field and search for antiprotons at multi-TeV energies[J]. ASTROPARTICLE PHYSICS,2007,28(1):#REF!.
APA Tibet ASγ Collaboration.(2007).Moon shadow by cosmic rays under the influence of geomagnetic field and search for antiprotons at multi-TeV energies.ASTROPARTICLE PHYSICS,28(1),#REF!.
MLA Tibet ASγ Collaboration."Moon shadow by cosmic rays under the influence of geomagnetic field and search for antiprotons at multi-TeV energies".ASTROPARTICLE PHYSICS 28.1(2007):#REF!.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
1514.pdf(276KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Tibet ASγ Collaboration]的文章
百度学术
百度学术中相似的文章
[Tibet ASγ Collaboration]的文章
必应学术
必应学术中相似的文章
[Tibet ASγ Collaboration]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 1514.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

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。