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Testing Lorentz invariance with the ultrahigh energy cosmic ray spectrum
Bi XJ(毕效军); Cao Z(曹臻); Li Y(李烨); Yuan Q(袁强); Bi, XJ; Cao, Z; Li, Y; Yuan, Q
2009
发表期刊PHYSICAL REVIEW D
卷号79期号:8页码:83015
通讯作者[Bi, Xiao-Jun ; Cao, Zhen ; Li, Ye ; Yuan, Qiang] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Bi, Xiao-Jun] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
文章类型Article
摘要The Greisen-Zatsepin-Kuzmin cutoff predicted at the ultrahigh energy cosmic ray spectrum has been observed by the HiRes and Auger experiments. The results put severe constraints on the effect of Lorentz invariance violation (LIV), which has been introduced to explain the absence of the Greisen-Zatsepin-Kuzmin cutoff indicated in the AGASA data. Assuming a homogeneous source distribution with a single power-law spectrum, we calculate the ultrahigh energy cosmic ray spectrum observed on the Earth by taking photopion production, e(+)e(-) pair production, and the adiabatic energy loss into account. The effect of LIV is also taken into account in the calculation. By fitting the HiRes monocular spectra and the Auger combined spectra, we show that the LIV parameter is constrained to xi=-0.8(-0.5)(+3.2)x10(-23) and 0.0(-0.4)(+1.0)x10(-23), respectively, which is very consistent with strict Lorentz invariance up to the highest energy.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.79.083015
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000266408500023
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被引频次:16[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/311005/240817
专题粒子天体物理中心
理论物理室
作者单位中国科学院高能物理研究所
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Bi XJ,Cao Z,Li Y,et al. Testing Lorentz invariance with the ultrahigh energy cosmic ray spectrum[J]. PHYSICAL REVIEW D,2009,79(8):83015.
APA 毕效军.,曹臻.,李烨.,袁强.,Bi, XJ.,...&Yuan, Q.(2009).Testing Lorentz invariance with the ultrahigh energy cosmic ray spectrum.PHYSICAL REVIEW D,79(8),83015.
MLA 毕效军,et al."Testing Lorentz invariance with the ultrahigh energy cosmic ray spectrum".PHYSICAL REVIEW D 79.8(2009):83015.
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