Abstract
It has been shown that small fluctuations of the refractive index of the lunar regolith owing to, e.g., a nonuniform density distribution, give rise to the loss of the coherence of a Cherenkov radio pulse induced by a cascade shower from an ultrahigh-energy particle and to a strong decrease in the spectral density of the radio signal. This can be one of the causes of why no events from ultrahigh-energy cosmic particles on the surface of the moon have been detected.
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Original Russian Text © A.D. Filonenko, 2010, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2010, Vol. 91, No. 9, pp. 483–486.
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Filonenko, A.D. Violation of the coherence of radio waves induced by a cascade shower in the lunar regolith. Jetp Lett. 91, 437–440 (2010). https://doi.org/10.1134/S0021364010090018
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DOI: https://doi.org/10.1134/S0021364010090018