Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission

doi:10.1103/PhysRevLett.126.201102

	Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission
	Alemanno, F.3,4; An, Q.1,2; Azzarello, P.24; Barbato, F. C. T.3,4; Bernardini, P.22,23; Bi, X. J.20,21; Cai, M. S.18,19; Catanzani, E.17; Chang, J.18,19; Chen, D. Y.19,20
刊名	PHYSICAL REVIEW LETTERS
	2021-05-18
卷号	126 期号:20 页码:7
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.126.201102
通讯作者	Alemanno, F.()
英文摘要	The measurement of the energy spectrum of cosmic ray helium nuclei from 70 GeV to 80 TeV using 4.5 years of data recorded by the Dark Matter Particle Explorer (DAMPE) is reported in this work. A hardening of the spectrum is observed at an energy of about 1.3 TeV, similar to previous observations. In addition, a spectral softening at about 34 TeV is revealed for the first time with large statistics and well controlled systematic uncertainties, with an overall significance of 4.3 sigma. The DAMPE spectral measurements of both cosmic protons and helium nuclei suggest a particle charge dependent softening energy, although with current uncertainties a dependence on the number of nucleons cannot be ruled out.
资助项目	strategic priority science and technology projects in space science of Chinese Academy of Sciences ; National Key Research and Development Program of China[2016YFA0400200] ; National Natural Science Foundation of China[11921003] ; National Natural Science Foundation of China[11622327] ; National Natural Science Foundation of China[12003076] ; National Natural Science Foundation of China[11722328] ; National Natural Science Foundation of China[11851305] ; National Natural Science Foundation of China[U1738205] ; National Natural Science Foundation of China[U1738206] ; National Natural Science Foundation of China[U1738207] ; National Natural Science Foundation of China[U1738208] ; National Natural Science Foundation of China[U1738127] ; strategic priority science and technology projects of Chinese Academy of Sciences[XDA15051100] ; Young Elite Scientists Sponsorship Program by CAST[YESS20160196] ; Program for Innovative Talents and Entrepreneur in Jiangsu ; Swiss National Science Foundation (SNSF), Switzerland ; National Institute for Nuclear Physics (INFN), Italy ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme[851103]
WOS关键词	CALIBRATION ; PERFORMANCE ; CRYSTALS ; DETECTOR
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000652839100002
资助机构	strategic priority science and technology projects in space science of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; strategic priority science and technology projects of Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Program for Innovative Talents and Entrepreneur in Jiangsu ; Swiss National Science Foundation (SNSF), Switzerland ; National Institute for Nuclear Physics (INFN), Italy ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/137142]
专题	中国科学院近代物理研究所
通讯作者	Alemanno, F.
作者单位	1.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China 2.Univ Sci & Technol China, State Key Lab Particle Detect & Elect, Hefei 230026, Peoples R China 3.Ist Nazl Fis Nucl INFN, Lab Nazl Gran Sasso, I-67100 Laquila, Italy 4.Gran Sasso Sci Inst GSSI, Via Iacobucci 2, I-67100 Laquila, Italy 5.Chinese Acad Sci, Inst Modern Phys, Nanchang Rd 509, Lanzhou 730000, Peoples R China 6.Linyi Univ, Sch Phys & Elect Engn, Linyi 276000, Shandong, Peoples R China 7.Shandong Inst Adv Technol SDIAT, Jinan 250100, Shandong, Peoples R China 8.Ecole Polytech Fed Lausanne EPFL, Inst Phys, CH-1015 Lausanne, Switzerland 9.Univ Palermo, Dipartimento Fis & Chim E Segre, Via Sci Ed 17, I-90128 Palermo, Italy 10.Univ Sassari, Dipartimento Chim & Farm, I-07100 Sassari, Italy
推荐引用方式 GB/T 7714	Alemanno, F.,An, Q.,Azzarello, P.,et al. Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission[J]. PHYSICAL REVIEW LETTERS,2021,126(20):7.
APA	Alemanno, F..,An, Q..,Azzarello, P..,Barbato, F. C. T..,Bernardini, P..,...&Zhu, Y..(2021).Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission.PHYSICAL REVIEW LETTERS,126(20),7.
MLA	Alemanno, F.,et al."Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission".PHYSICAL REVIEW LETTERS 126.20(2021):7.