Lorentz violation for photons and ultrahigh-energy cosmic rays

被引：106

作者：

Galaverni, Matteo ^{[1
,2
,3
]}

Sigl, Gunter ^{[4
,5
]}

机构：

[1] INAF IASF Bologna, I-40129 Bologna, Italy

[2] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[3] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[4] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

[5] Univ Paris 07, Observ Paris, AstroParticules & Cosmol, CNRS,UMR 7164, F-75205 Paris 13, France

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 02期

关键词：

Lorentz force;

D O I：

10.1103/PhysRevLett.100.021102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Lorentz symmetry breaking at very high energies may lead to photon dispersion relations of the form omega(2)=k(2)+xi(n)k(2)(k/M(Pl))(n) with new terms suppressed by a power n of the Planck mass M(Pl). We show that first and second order terms of size vertical bar xi(1 vertical bar)greater than or similar to 10(-14) and xi(2)less than or similar to-10(-6), respectively, would lead to a photon component in cosmic rays above 10(19) eV that should already have been detected, if corresponding terms for e(+/-) are significantly smaller. This suggests that LI breaking suppressed up to second order in the Planck scale is unlikely to be phenomenologically viable for photons.

引用

页数：4

共 30 条

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