Testing Lorentz violation using propagating UHECRs |
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Authors: | Cong-Xin Qiu Zi-Gao Dai |
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Institution: | Department of Astronomy, Nanjing University, Nanjing 210093, China |
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Abstract: | Lorentz invariant violation (LIV) test is important for studying modem physics.All the known astrophysical constraints either have a very small examinable parameter space or are only suitable for some special theoretical models. Here, we suggest that it is possible to directly detect the time-delay of ultra-high-energy cosmic-rays (UHECRs). We discuss some difficulties in our method, including the intergalactic magnetic fields. It seems that none of them are crucial, hence this method could give a larger examinable parameter space and a stronger constraint on LIV. |
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Keywords: | cosmic rays -- gamma rays: bursts -- ISM: magnetic fields -- relativity |
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