Photon splitting constraint on Lorentz invariance violation from Crab Nebula spectrum

被引：24
|
作者：
Astapov, Konstantin [1 ]
Kirpichnikov, Dmitry [1 ]
Satunin, Petr [1 ]
机构：
[1] Russian Acad Sci, Inst Nucl Res, 60th October Anniversary Prospect 7a, Moscow 117312, Russia
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2019年 / 04期
关键词：
gamma ray theory; quantum gravity phenomenology; gamma ray experiments; QUANTUM-GRAVITY; HIGH-ENERGY; COSMIC-RAY; LIMITS; TESTS;
D O I：
10.1088/1475-7516/2019/04/054
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We calculate the decay width of the photon splitting into three photons in a model of quantum electrodynamics with broken Lorentz invariance. We show that this process can lead to a cut-off in the very-high-energy part of a photon spectra of astrophysical sources. We obtain the 95% CL bound on the Lorentz violating mass scale for photons from the analysis of the very-high-energy part of the Crab Nebula spectrum, obtained by HEGRA. This bound improves previous constraints by more than an order of magnitude.
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页数：16
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