Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector

	Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector
	The
刊名	ASTRONOMY & ASTROPHYSICS
	2008
卷号	488 期号:3 页码:1093-1100
关键词	SIDEREAL SEARCH INTENSITY
通讯作者	Achard, P (reprint author), Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany.
英文摘要	Context. Primary cosmic rays experience multiple deflections in the non-uniform galactic and heliospheric magnetic fields which may generate anisotropies. Aims. A study of anisotropies in the energy range between 100 and 500 GeV is performed. This energy range is not yet well explored. Methods. The L3 detector at the CERN electron-positron collider, LEP, is used for a study of the angular distribution of atmospheric muons with energies above 20 GeV. This distribution is used to investigate the isotropy of the time-dependent intensity of the primary cosmic-ray flux with a Fourier analysis. Results. A small deviation from isotropy at energies around 200 GeV is observed for the second harmonics at the solar frequency. No sidereal anisotropy is found at a level above 10(-4). The measurements were performed in the years 1999 and 2000.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
收录类别	SCI
语种	英语
WOS记录号	WOS:000259204400032
公开日期	2016-02-26
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/212872]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	The . Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector[J]. ASTRONOMY & ASTROPHYSICS,2008,488(3):1093-1100.
APA	The .(2008).Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector.ASTRONOMY & ASTROPHYSICS,488(3),1093-1100.
MLA	The ."Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector".ASTRONOMY & ASTROPHYSICS 488.3(2008):1093-1100.