Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station

doi:10.1103/PhysRevLett.121.051102

	Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station
	AMS Collaboration
刊名	PHYSICAL REVIEW LETTERS
	2018
卷号	121 期号:5 页码:51102
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.121.051102
文献子类	Article
英文摘要	We present high-statistics, precision measurements of the detailed time and energy dependence of the primary cosmic-ray electron flux and positron flux over 79 Bartels rotations from May 2011 to May 2017 in the energy range from 1 to 50 GeV. For the first time, the charge-sign dependent modulation during solar maximum has been investigated in detail by leptons alone. Based on 23.5 x 10(6) events, we report the observation of short-term structures on the timescale of months coincident in both the electron flux and the positron flux. These structures are not visible in the e(+)/e(-) flux ratio. The precision measurements across the solar polarity reversal show that the ratio exhibits a smooth transition over 830 +/- 30 days from one value to another. The midpoint of the transition shows an energy dependent delay relative to the reversal and changes by 260 +/- 30 days from 1 to 6 GeV.
电子版国际标准刊号	1079-7114
WOS关键词	SOLAR MODULATION ; HELIOSPHERE ; PROPAGATION ; GALAXY ; PERSPECTIVE ; SIMULATIONS ; MINIMUM ; PROTONS
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000440386100002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286177]
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	AMS Collaboration. Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station[J]. PHYSICAL REVIEW LETTERS,2018,121(5):51102.
APA	AMS Collaboration.(2018).Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station.PHYSICAL REVIEW LETTERS,121(5),51102.
MLA	AMS Collaboration."Observation of Complex Time Structures in the Cosmic-Ray Electron and Positron Fluxes with the Alpha Magnetic Spectrometer on the International Space Station".PHYSICAL REVIEW LETTERS 121.5(2018):51102.