Moon shadow by cosmic rays under the influence of geomagnetic field and search for antiprotons at multi-TeV energies
文献类型：期刊论文
| 作者 | Amenomori, M. ; Ayabe, S. ; Bi, X. J. ; Chen, D. ; Cui, S. W. ; Danzengluobu, ; Ding, L. K. ; Ding, X. H. ; Feng, C. F. ; Feng, Z ; Feng, Z. Y. ; Gao, X. Y. ; Geng, Q. ; Guo, H. W. ; He, H. H. ; He, M. ; Hibino, K. ; Hotta, N. ; Hu, H. B. ; Huang, J. ; Huang, Q. ; Jia, H. Y. ; Kajino, F. ; Kasahara, K. ; Katayose, Y. ; Kato, C. ; Kawata, K. ; Labaciren, ; Le, G. M. ; Li, A. F. ; Li, J. Y. ; Lou, Y. Q. ; Lu, H. ; Lu, S. L. ; Meng, X. R. ; Mizutani, K. ; Mu, J. ; Munakata, K. ; Nagai, A. ; Nanjo, H. ; Nishizawa, M. ; Ohnishi, M. ; Ohta, I. ; Onuma, H. ; Ouchi, T. ; Ozawa, S. ; Ren, J. R. ; Saito, T. ; Saito, T. Y. ; Sakata, M. ; Sako, T. K. ; Sasaki, T. ; Shibata, M. ; Shiomi, A. ; Shirai, T. ; Sugimoto, H. ; Takita, M. ; Tan, Y. H. ; Tateyama, N. ; Torii, S. ; Tsuchlya, H. ; Udo, S. ; Wang, B.S. ; Wang, H. ; Wang, X. ; Wang, Y. G. ; Wu, H. R. ; Xue, L. ; Yamamoto, Y. ; Yan, C. T. ; Yang, X. C. ; Yasue, S. ; Yu, G. C. ; Yuan, A. F. ; Yuda, T. ; Zhang, H. M. ; Zhang, J. L. ; Zhang, N. J. ; Zhang, X. Y. ; Zhang, Y. ; Zhaxisangzhu, ; Zhou, X. X. |
| 刊名 | Astroparticle Physics
 |
| 出版日期 | 2007 |
| 卷号 | 28期号:1页码:137-142 |
| ISSN号 | 0927-6505 |
| 关键词 | cosmic rays air shower anti-matter observation and data analysis simulations air-shower array closed galaxy gamma-rays flux elements nuclei model |
| 通讯作者 | 北京8701信箱 |
| 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. |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TJ1-4NRK4G6-1-9&_cdi=5297&_user=1999492&_pii=S0927650507000734&_orig=search&_coverDate=09%2F30%2F2007&_sk=999719998&view=c&wchp=dGLzVzb-zSkzS&md5=cdc0be3c2d76e9eeb6fdd3bca74a88f7&ie=/sdarticle.pdf |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1707]  |
| 专题 | 国家空间科学中心_其他部室 |
| 推荐引用方式 GB/T 7714 | Amenomori, M.,Ayabe, S.,Bi, X. J.,et al. 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):137-142. |
| APA | Amenomori, M..,Ayabe, S..,Bi, X. J..,Chen, D..,Cui, S. W..,...&Zhou, X. X..(2007).Moon shadow by cosmic rays under the influence of geomagnetic field and search for antiprotons at multi-TeV energies.Astroparticle Physics,28(1),137-142. |
| MLA | Amenomori, M.,et al."Moon shadow by cosmic rays under the influence of geomagnetic field and search for antiprotons at multi-TeV energies".Astroparticle Physics 28.1(2007):137-142. |
入库方式： OAI收割
来源：国家空间科学中心
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