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
刊名PHYSICAL REVIEW D
2009
卷号79期号:8页码:83015
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.79.083015
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
英文摘要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.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000266408500023
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240817
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
中国科学院高能物理研究所_粒子天体物理中心
中国科学院高能物理研究所_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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